{"id":47581,"date":"2023-05-04T14:42:30","date_gmt":"2022-11-16T11:53:37","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/graphql-%e6%a8%a1%e5%bc%8f%e4%b8%8e%e7%b1%bb%e5%9e%8b\/"},"modified":"2024-04-30T02:35:22","modified_gmt":"2024-04-29T18:35:22","slug":"graphql-%e6%a8%a1%e5%bc%8f%e4%b8%8e%e7%b1%bb%e5%9e%8b","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/graphql-%e6%a8%a1%e5%bc%8f%e4%b8%8e%e7%b1%bb%e5%9e%8b\/","title":{"rendered":"GraphQL: \u6a21\u5f0f\u4e0e\u7c7b\u578b"},"content":{"rendered":"

\u672c\u6587\u662f\u6839\u636e\u5b98\u65b9\u7f51\u7ad9\u201cSchemas and Types\u201d\u7684\u5185\u5bb9\uff0c\u5bf9GraphQL\u7c7b\u578b\u7cfb\u7edf\u4ee5\u53ca\u5982\u4f55\u63cf\u8ff0\u53ef\u4ee5\u8bf7\u6c42\u7684\u6570\u636e\u8fdb\u884c\u89e3\u91ca\u3002GraphQL\u53ef\u4ee5\u7528\u4e8e\u4efb\u4f55\u540e\u7aef\u6846\u67b6\u548c\u7f16\u7a0b\u8bed\u8a00\uff0c\u56e0\u6b64\u6211\u4eec\u5c06\u5173\u6ce8\u601d\u7ef4\u65b9\u5f0f\u800c\u907f\u514d\u5177\u4f53\u7684\u5b9e\u73b0\u7ec6\u8282\u3002\u8fd9\u4e0d\u662f\u6587\u6863\u7684\u7ffb\u8bd1\uff0c\u800c\u662f\u5728\u65e5\u8bed\u4e2d\u91cd\u65b0\u89e3\u91ca\u3002\u6709\u4e9b\u90e8\u5206\u88ab\u7701\u7565\u4e86\uff0c\u800c\u67d0\u4e9b\u96be\u4ee5\u7406\u89e3\u7684\u5730\u65b9\u5219\u8fdb\u884c\u4e86\u8865\u5145\u3002\u53e6\u5916\uff0cGraphQL\u5b98\u65b9\u7f51\u7ad9\u7684\u4ee3\u7801\u793a\u4f8b\u662f\u4e00\u4e2a\u4ea4\u4e92\u73af\u5883\u3002\u60a8\u53ef\u4ee5\u91cd\u5199\u4ee3\u7801\u5e76\u786e\u8ba4\u7ed3\u679c\uff0c\u6240\u4ee5\u8bf7\u52a1\u5fc5\u5c1d\u8bd5\u4e00\u4e0b\u3002<\/p>\n

\u7c7b\u578b\u7cfb\u7edf<\/h1>\n

GraphQL\u67e5\u8be2\u8bed\u8a00\u7684\u57fa\u7840\u662f\u9009\u62e9\u5bf9\u8c61\u7684\u5b57\u6bb5\u3002\u8ba9\u6211\u4eec\u901a\u8fc7\u4ee5\u4e0b\u67e5\u8be2\u4ee3\u7801\u793a\u4f8b\u6765\u601d\u8003\uff0c\u4f8b\u5982\uff1a<\/p>\n

{<\/span>\r\n\thero<\/span> {<\/span>\r\n\t\tname<\/span>\r\n\t\tappearsIn<\/span>\r\n\t}<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
{<\/span>\r\n\t\"data\"<\/span>:<\/span> {<\/span>\r\n\t\t\"hero\"<\/span>:<\/span> {<\/span>\r\n\t\t\t\"name\"<\/span>:<\/span> \"R2-D2\"<\/span>,<\/span>\r\n\t\t\t\"appearsIn\"<\/span>:<\/span> [<\/span>\r\n\t\t\t\t\"NEWHOPE\"<\/span>,<\/span>\r\n\t\t\t\t\"EMPIRE\"<\/span>,<\/span>\r\n\t\t\t\t\"JEDI\"<\/span>\r\n\t\t\t]<\/span>\r\n\t\t}<\/span>\r\n\t}<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
    \n
  1. \n
      \u4ece\u7279\u6b8a\u7684\u6839\u5bf9\u8c61\u5f00\u59cb\u3002<\/ol>\n<\/li>\n<\/ol>\n
       <\/p>\n
        \n
      1. \n
          \u9009\u62e9\u5176\u4e0b\u7684hero\u5b57\u6bb5\u3002<\/ol>\n<\/li>\n<\/ol>\n
          \u4ecehero\u8fd4\u56de\u7684\u5bf9\u8c61\u4e2d\u9009\u62e9name\u548cappearsIn\u3002<\/p>\n
          GraphQL\u7684\u67e5\u8be2\u5f62\u72b6\u662f\u5bf9\u6240\u9700\u7ed3\u679c\u7684\u51e0\u4e4e\u539f\u5c01\u4e0d\u52a8\u7684\u63cf\u8ff0\u3002\u5373\u4f7f\u5bf9\u670d\u52a1\u5668\u4e86\u89e3\u4e0d\u591a\uff0c\u4e5f\u53ef\u4ee5\u9884\u6d4b\u67e5\u8be2\u4f1a\u8fd4\u56de\u4ec0\u4e48\u3002\u7136\u800c\uff0c\u6709\u4e00\u4e2a\u7cbe\u786e\u7684\u6570\u636e\u63cf\u8ff0\u53ef\u4ee5\u65b9\u4fbf\u5730\u4e86\u89e3\u53ef\u4ee5\u8981\u6c42\u4ec0\u4e48\u3002\u53ef\u4ee5\u9009\u62e9\u54ea\u4e9b\u5b57\u6bb5\uff1f\u5c06\u8fd4\u56de\u4ec0\u4e48\u6837\u7684\u5bf9\u8c61\uff1f\u53ef\u4ee5\u4ece\u5b50\u5bf9\u8c61\u4e2d\u63d0\u53d6\u54ea\u4e9b\u5b57\u6bb5\uff1f\u8fd9\u5c31\u662f\u6a21\u5f0f\u7684\u7528\u9014\u3002<\/p>\n
          \u5728GraphQL\u670d\u52a1\u4e2d\uff0c\u901a\u8fc7\u5b9a\u4e49\u7c7b\u578b\u7684\u7ec4\u5408\uff0c\u6e05\u6670\u5730\u63cf\u8ff0\u4e86\u53ef\u4ee5\u83b7\u53d6\u54ea\u4e9b\u6570\u636e\u3002\u5f53\u6709\u67e5\u8be2\u8bf7\u6c42\u65f6\uff0c\u5c06\u6839\u636e\u6a21\u5f0f\u8fdb\u884c\u9a8c\u8bc1\u548c\u6267\u884c\u3002<\/p>\n
          \u8bed\u8a00\u7c7b\u578b<\/h2>\n
          GraphQL\u670d\u52a1\u53ef\u4ee5\u4f7f\u7528\u4efb\u4f55\u8bed\u8a00\u7f16\u5199\u3002\u89e3\u91caGraphQL\u6a21\u5f0f\u65f6\uff0c\u4e0d\u5e94\u8be5\u57fa\u4e8e\u7279\u5b9a\u7f16\u7a0b\u8bed\u8a00\uff08\u5982JavaScript\uff09\u7684\u8bed\u6cd5\u3002\u56e0\u6b64\uff0c\u6211\u4eec\u9700\u8981\u5b9a\u4e49\u4e00\u79cd\u81ea\u5df1\u7684\u7b80\u6613\u7684\u201cGraphQL\u6a21\u5f0f\u8bed\u8a00\u201d\u3002\u8fd9\u79cd\u8bed\u8a00\u7c7b\u4f3c\u4e8e\u67e5\u8be2\u8bed\u8a00\uff0c\u5bb9\u6613\u89e3\u91caGraphQL\u6a21\u5f0f\uff0c\u4e14\u4e0d\u53d7\u7279\u5b9a\u8bed\u8a00\u7684\u9650\u5236\u3002<\/p>\n
          \u5bf9\u8c61\u7c7b\u578b\u548c\u5b57\u6bb5<\/h2>\n
          GraphQL\u7684\u57fa\u672c\u8981\u7d20\u662f\u5bf9\u8c61\u7c7b\u578b\u3002\u5b83\u8868\u793a\u53ef\u4ece\u670d\u52a1\u83b7\u53d6\u7684\u5bf9\u8c61\uff0c\u5e76\u6307\u793a\u5305\u542b\u54ea\u4e9b\u5b57\u6bb5\u3002\u4ee5\u4e0b\u4ee3\u7801\u662fGraphQL\u6a21\u5f0f\u8bed\u8a00\u7684\u793a\u4f8b\u3002<\/p>\n
          type<\/span> Character<\/span> {<\/span>\r\n\tname<\/span>:<\/span> String<\/span>!<\/span>\r\n\tappearsIn<\/span>:<\/span> [<\/span>Episode<\/span>!]!<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
          \u8ba9\u6211\u4eec\u9010\u4e2a\u68c0\u67e5\u8fd9\u6bb5\u4ee3\u7801\u7684\u5143\u7d20\u3002<\/p>\n
          Character – GraphQL\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u578b\u3067\u3001\u3044\u304f\u3064\u304b\u306e\u30d5\u30a3\u30fc\u30eb\u30c9\u3092\u3082\u3064\u3002\u30b9\u30ad\u30fc\u30de\u306e\u578b\u306e\u591a\u304f\u306f\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u578b\u3002<\/p>\n
          name\u304a\u3088\u3073appearsIn – Character\u304c\u3082\u3064\u30d5\u30a3\u30fc\u30eb\u30c9\u3002Character\u578b\u3092\u64cd\u4f5c\u3059\u308bGraphQL\u30af\u30a8\u30ea\u306f\u3001\u3053\u306e\u3075\u305f\u3064\u306e\u30d5\u30a3\u30fc\u30eb\u30c9\u3060\u3051\u304c\u6271\u3048\u308b\u3002<\/p>\n
          String! – null\u3067\u306f\u306a\u3044\u6587\u5b57\u5217\u30b9\u30ab\u30e9\u30fc\u578b\u3002<\/p>\n
          String – \u6587\u5b57\u5217\u3068\u3057\u3066\u89e3\u6c7a\u3055\u308c\u308b\u7d44\u307f\u8fbc\u307f\u30b9\u30ab\u30e9\u30fc\u578b\u306e\u3072\u3068\u3064\u3002\u5358\u72ec\u306e\u30b9\u30ab\u30e9\u30fc\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306a\u306e\u3067\u3001\u30af\u30a8\u30ea\u3067\u30d5\u30a3\u30fc\u30eb\u30c9\u306e\u4e2d\u306e\u5165\u308c\u5b50\u306e\u9078\u629e\u306f\u3067\u304d\u306a\u3044\u3002<\/p>\n
          ! – null\u3067\u306f\u306a\u3044(non-nullable)\u30d5\u30a3\u30fc\u30eb\u30c9\u3092\u793a\u3059\u3002GraphQL\u30b5\u30fc\u30d3\u30b9\u3067\u3053\u306e\u30d5\u30a3\u30fc\u30eb\u30c9\u306e\u30af\u30a8\u30ea\u306f\u5fc5\u305a\u5024\u304c\u8fd4\u3055\u308c\u308b\u3002<\/p>\n
          [Episode!]! – Episode\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u914d\u5217\u3067\u3001null\u3067\u306f\u306a\u3044\u3002\u3057\u305f\u304c\u3063\u3066\u3001appearsIn\u30d5\u30a3\u30fc\u30eb\u30c9\u306e\u30af\u30a8\u30ea\u306f\u5fc5\u305a\u914d\u5217(0\u4ee5\u4e0a\u306e\u8981\u7d20\u3092\u542b\u3080)\u3092\u8fd4\u3059\u3002Episode!\u3082null\u3067\u306f\u306a\u3044\u306e\u3067\u3001\u8981\u7d20\u306f\u5fc5\u305aEpisode\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3067\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3002<\/p>\n
          \u4ee5\u4e0a\u662fGraphQL\u7c7b\u578b\u8bed\u8a00\u7684\u57fa\u7840\u3002<\/p>\n
          \u53c2\u6570<\/h2>\n
          \u5728GraphQL\u5bf9\u8c61\u7c7b\u578b\u7684\u6bcf\u4e2a\u5b57\u6bb5\u90fd\u53ef\u4ee5\u63d0\u4f9b\u53c2\u6570\uff0c\u5982\u679c\u9700\u8981\u7684\u8bdd\u3002\u4f8b\u5982\uff0c\u5728\u4e0b\u9762\u7684\u4ee3\u7801\u793a\u4f8b\u4e2d\uff0c”unit”\u5c31\u662f\u4f5c\u4e3a\u53c2\u6570\u4f20\u9012\u7ed9\u4e86”length”\u5b57\u6bb5\u3002<\/p>\n
          type<\/span> Starship<\/span> {<\/span>\r\n\tid<\/span>:<\/span> ID<\/span>!<\/span>\r\n\tname<\/span>:<\/span> String<\/span>!<\/span>\r\n\tlength<\/span>(<\/span>unit<\/span>:<\/span> LengthUnit<\/span> =<\/span> METER<\/span>):<\/span> Float<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
          \u5728GraphQL\u4e2d\uff0c\u6bcf\u4e2a\u53c2\u6570\u90fd\u6709\u4e00\u4e2a\u540d\u79f0\u3002\u4e0e\u4f7f\u7528JavaScript\u6216Python\u7b49\u8bed\u8a00\u7684\u51fd\u6570\u6309\u987a\u5e8f\u63a5\u6536\u53c2\u6570\u7684\u65b9\u5f0f\u4e0d\u540c\uff0cGraphQL\u7684\u53c2\u6570\u90fd\u662f\u901a\u8fc7\u7279\u5b9a\u7684\u540d\u79f0\u6765\u4f20\u9012\u7684\u3002\u5728\u8fd9\u4e2a\u4ee3\u7801\u793a\u4f8b\u4e2d\uff0clength\u5b57\u6bb5\u5177\u6709\u4e00\u4e2a\u540d\u4e3aunit\u7684\u7279\u5b9a\u53c2\u6570\u3002<\/p>\n
          \u53c2\u6570\u53ef\u4ee5\u662f\u5fc5\u586b\u7684\uff0c\u4e5f\u53ef\u4ee5\u662f\u53ef\u7701\u7565\u7684\u3002\u53ea\u6709\u5f53\u53c2\u6570\u662f\u53ef\u9009\u65f6\uff0c\u624d\u80fd\u7ed9\u5b9a\u9ed8\u8ba4\u503c\u3002\u5982\u679c\u6ca1\u6709\u4f20\u9012\u53c2\u6570\u5230length\u5b57\u6bb5\uff0c\u5219unit\u5c06\u88ab\u8bbe\u7f6e\u4e3a\u9ed8\u8ba4\u503cMETER\u3002<\/p>\n
          \u95ee\u9898\u7c7b\u578b\u548c\u53d8\u5f02\u7c7b\u578b<\/h2>\n
          \u901a\u5e38\u60c5\u51b5\u4e0b\uff0c\u6a21\u5f0f\u4e2d\u7684\u5927\u90e8\u5206\u7c7b\u578b\u90fd\u662f\u5e38\u89c4\u5bf9\u8c61\u7c7b\u578b\u3002\u7136\u800c\uff0c\u8fd9\u4e2a\u6a21\u5f0f\u4e2d\u8fd8\u6709\u4e24\u79cd\u7279\u6b8a\u7c7b\u578b\u3002<\/p>\n
          schema<\/span> {<\/span>\r\n\tquery<\/span>:<\/span> Query<\/span>\r\n\tmutation<\/span>:<\/span> Mutation<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
          \u6240\u6709\u7684GraphQL\u670d\u52a1\u90fd\u6709Query\u7c7b\u578b\u3002Mutation\u7c7b\u578b\u53ef\u4ee5\u6709\uff0c\u4e5f\u53ef\u4ee5\u6ca1\u6709\u3002\u8fd9\u4e24\u4e2a\u7c7b\u578b\u4e0e\u666e\u901a\u7684\u5bf9\u8c61\u7c7b\u578b\u76f8\u540c\u3002\u7136\u800c\uff0c\u53ef\u4ee5\u8bf4\uff0c\u5b83\u4eec\u662f\u6307\u5b9aGraphQL\u67e5\u8be2\u5165\u53e3\u70b9\u7684\u7279\u6b8a\u7c7b\u578b\u3002\u8ba9\u6211\u4eec\u770b\u4e0b\u9762\u7684\u4ee3\u7801\u793a\u4f8b\u3002<\/p>\n
          query<\/span> {<\/span>\r\n\thero<\/span> {<\/span>\r\n\t\tname<\/span>\r\n\t}<\/span>\r\n\tdroid<\/span>(<\/span>id<\/span>:<\/span> \"2000\"<\/span>)<\/span> {<\/span>\r\n\t\tname<\/span>\r\n\t}<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
          {<\/span>\r\n\t\"data\"<\/span>:<\/span> {<\/span>\r\n\t\t\"hero\"<\/span>:<\/span> {<\/span>\r\n\t\t\t\"name\"<\/span>:<\/span> \"R2-D2\"<\/span>\r\n\t\t},<\/span>\r\n\t\t\"droid\"<\/span>:<\/span> {<\/span>\r\n\t\t\t\"name\"<\/span>:<\/span> \"C-3PO\"<\/span>\r\n\t\t}<\/span>\r\n\t}<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
          \u8fd9\u4e2aGraphQL\u670d\u52a1\u7684\u67e5\u8be2\u7c7b\u578b\u5fc5\u987b\u5177\u6709\u4e24\u4e2a\u5b57\u6bb5\uff1ahero\u548cdroid\u3002<\/p>\n
          type<\/span> Query<\/span> {<\/span>\r\n\thero<\/span>(<\/span>episode<\/span>:<\/span> Episode<\/span>):<\/span> Character<\/span>\r\n\tdroid<\/span>(<\/span>id<\/span>:<\/span> ID<\/span>!):<\/span> Droid<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
          Mutation\u7c7b\u578b\u4e5f\u53ef\u4ee5\u4ee5\u540c\u6837\u7684\u65b9\u5f0f\u5904\u7406\u3002\u5728Mutation\u7c7b\u578b\u4e2d\u5b9a\u4e49\u7684\u5b57\u6bb5\u53ef\u4ee5\u5728\u8c03\u7528\u67e5\u8be2\u7684\u4fee\u6539\u5b57\u6bb5\u7684\u6839\u4e2d\u4f7f\u7528\u3002<\/p>\n
          \u9664\u4e86\u5728\u6a21\u5f0f\u4e2d\u626e\u6f14\u201c\u5165\u53e3\u70b9\u201d\u7684\u7279\u6b8a\u4f4d\u7f6e\u4e4b\u5916\uff0c\u67e5\u8be2\u548c\u53d8\u66f4\u90fd\u4e0e\u5176\u4ed6GraphQL\u5bf9\u8c61\u7c7b\u578b\u6ca1\u6709\u533a\u522b\u3002\u53ef\u4ee5\u4ee5\u5b8c\u5168\u76f8\u540c\u7684\u65b9\u5f0f\u64cd\u4f5c\u6307\u5b9a\u7684\u5b57\u6bb5\u3002<\/p>\n
          \u6807\u91cf\u7c7b\u578b<\/h2>\n
          GraphQL\u5bf9\u8c61\u5177\u6709\u540d\u79f0\u548c\u5b57\u6bb5\uff0c\u5e76\u4e14\u53ef\u4ee5\u8fdb\u4e00\u6b65\u8fdb\u884c\u5d4c\u5957\u3002\u7136\u800c\uff0c\u6700\u7ec8\u5b57\u6bb5\u5fc5\u987b\u89e3\u6790\u4e3a\u5177\u4f53\u7684\u6570\u636e\u3002\u8fd9\u88ab\u79f0\u4e3a\u6807\u91cf\u7c7b\u578b\u3002\u5b83\u662f\u67e5\u8be2\u7684\u7ec8\u70b9\u3002\u5728\u4e0b\u9762\u7684\u4ee3\u7801\u793a\u4f8b\u4e2d\uff0c\u5b57\u6bb5\u540d\u79f0\u548c\u51fa\u73b0\u6b21\u6570\u5c06\u88ab\u89e3\u6790\u4e3a\u6807\u91cf\u7c7b\u578b\u3002<\/p>\n
          {<\/span>\r\n\thero<\/span> {<\/span>\r\n\t\tname<\/span>\r\n\t\tappearsIn<\/span>\r\n\t}<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
          {<\/span>\r\n\t\"data\"<\/span>:<\/span> {<\/span>\r\n\t\t\"hero\"<\/span>:<\/span> {<\/span>\r\n\t\t\t\"name\"<\/span>:<\/span> \"R2-D2\"<\/span>,<\/span>\r\n\t\t\t\"appearsIn\"<\/span>:<\/span> [<\/span>\r\n\t\t\t\t\"NEWHOPE\"<\/span>,<\/span>\r\n\t\t\t\t\"EMPIRE\"<\/span>,<\/span>\r\n\t\t\t\t\"JEDI\"<\/span>\r\n\t\t\t]<\/span>\r\n\t\t}<\/span>\r\n\t}<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
          \u5728GraphQL\u4e2d\uff0c\u6807\u91cf\u7c7b\u578b\u6ca1\u6709\u4efb\u4f55\u5b57\u6bb5\uff0c\u56e0\u4e3a\u5b83\u4eec\u662f\u67e5\u8be2\u6811\u7684\u53f6\u5b50\u8282\u70b9\u3002GraphQL\u9ed8\u8ba4\u5305\u542b\u4ee5\u4e0b\u6807\u91cf\u7c7b\u578b\u3002<\/p>\n
          Int – \u7b26\u53f7\u3064\u304d32\u30d3\u30c3\u30c8\u6574\u6570\u3002<\/p>\n
          Float – \u7b26\u53f7\u3064\u304d\u500d\u7cbe\u5ea6\u6d6e\u52d5\u5c0f\u6570\u70b9\u5024\u3002<\/p>\n
          String – UTF-8\u6587\u5b57\u5217\u3002<\/p>\n
          Boolean – true\u304bfalse\u304b\u306e\u771f\u507d\u5024\u3002<\/p>\n
          ID – \u4e00\u610f\u306e\u8b58\u5225\u5b50\u3092\u8868\u3059\u3002\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u518d\u8aad\u307f\u8fbc\u307f\u3084\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u30ad\u30fc\u306a\u3069\u306b\u7528\u3044\u3089\u308c\u308b\u3002\u6587\u5b57\u5217\u3068\u540c\u3058\u3088\u3046\u306b\u30b7\u30ea\u30a2\u30eb\u5316\u3055\u308c\u308b\u304c\u3001\u4eba\u304c\u8aad\u3081\u308b\u3053\u3068\u3092\u610f\u56f3\u3057\u306a\u3044\u3002<\/p>\n
          \u5728\u5927\u591a\u6570GraphQL\u670d\u52a1\u4e2d\uff0c\u5df2\u7ecf\u5b9e\u73b0\u4e86\u5b9a\u4e49\u81ea\u5b9a\u4e49\u6807\u91cf\u7c7b\u578b\u7684\u529f\u80fd\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u5b9a\u4e49\u65e5\u671f\u7c7b\u578b\u3002<\/p>\n
          scalar<\/span> Date<\/span>\r\n<\/code><\/pre>\n
          \u578b\u7684\u5e8f\u5217\u5316\u3001\u53cd\u5e8f\u5217\u5316\u548c\u9a8c\u8bc1\u65b9\u5f0f\u662f\u7531\u5b9e\u73b0\u51b3\u5b9a\u7684\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u89c4\u5b9a\u5c06Date\u7c7b\u578b\u59cb\u7ec8\u5e8f\u5217\u5316\u4e3a\u6574\u6570\u65f6\u95f4\u6233\u3002\u5ba2\u6237\u7aef\u53ef\u4ee5\u4e86\u89e3\u65e5\u671f\u5b57\u6bb5\u7684\u683c\u5f0f\u662f\u4ec0\u4e48\u6837\u7684\u3002<\/p>\n
          \u679a\u4e3e\u7c7b\u578b<\/h2>\n
          \u679a\u4e3e\u7c7b\u578b\u662f\u4e00\u79cd\u7279\u6b8a\u7684\u6807\u91cf\uff0c\u5b83\u9650\u5236\u4e86\u53d6\u503c\u7684\u7ec4\u5408\u3002\u53ef\u4ee5\u8fdb\u884c\u4ee5\u4e0b\u64cd\u4f5c\uff1a<\/p>\n
            \n
          1. \n
              \u901a\u8fc7\u7c7b\u578b\u7cfb\u7edf\u786e\u5b9a\u8be5\u53c2\u6570\u662f\u5141\u8bb8\u7684\u67d0\u4e2a\u503c\u3002<\/ol>\n<\/li>\n<\/ol>\n
               <\/p>\n
                \u901a\u8fc7\u7c7b\u578b\u7cfb\u7edf\uff0c\u544a\u77e5\u8be5\u5b57\u6bb5\u662f\u7279\u5b9a\u503c\u7ec4\u5408\u4e2d\u7684\u4e00\u4e2a\u3002<\/ol>\n
                \u4ee5\u4e0b\u662f\u4f7f\u7528GraphQL\u6a21\u5f0f\u8bed\u8a00\u5b9a\u4e49\u679a\u4e3e\u7c7b\u578b\u7684\u793a\u4f8b\u4ee3\u7801\u3002<\/p>\n
                enum<\/span> Episode<\/span> {<\/span>\r\n\tNEWHOPE<\/span>\r\n\tEMPIRE<\/span>\r\n\tJEDI<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
                \u5982\u679c\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u4f7f\u7528\u6a21\u5f0f\uff08Schema\uff09\u4e0eEpisode\u4f5c\u4e3a\u7c7b\u578b\uff0c\u90a3\u4e48\u6211\u4eec\u53ef\u4ee5\u5047\u8bbeNEWHOPE\uff0cEMPIRE\uff0cJEDI\u4e2d\u7684\u4efb\u4e00\u4e2a\u3002<\/p>\n
                \u8bf7\u6ce8\u610f\uff0c\u4e0d\u540c\u8bed\u8a00\u5b9e\u73b0\u7684GraphQL\u670d\u52a1\u5bf9\u4e8e\u6bcf\u79cd\u8bed\u8a00\u90fd\u6709\u81ea\u5df1\u5904\u7406\u679a\u4e3e\u7c7b\u578b\u7684\u65b9\u5f0f\u3002\u652f\u6301\u6b63\u5f0f\u679a\u4e3e\u7c7b\u578b\u7684\u8bed\u8a00\u53ef\u80fd\u4f1a\u5c06\u5176\u7eb3\u5165\u5b9e\u73b0\u4e2d\u3002\u5bf9\u4e8e\u4e0d\u652f\u6301\u679a\u4e3e\u7c7b\u578b\u7684\u8bed\u8a00\uff0c\u5982JavaScript\uff0c\u53ef\u80fd\u4f1a\u8003\u8651\u5c06\u5176\u4f5c\u4e3a\u6574\u6570\u7ec4\u5904\u7406\u3002\u7136\u800c\uff0c\u8fd9\u4e9b\u7ec6\u8282\u5bf9\u4e8e\u5ba2\u6237\u7aef\u662f\u4e0d\u53ef\u89c1\u7684\u3002\u679a\u4e3e\u7c7b\u578b\u7684\u503c\u53ef\u4ee5\u901a\u8fc7\u540d\u79f0\u5b57\u7b26\u4e32\u8fdb\u884c\u64cd\u4f5c\u3002<\/p>\n
                \u5217\u8868\u548c\u975e\u7a7a\u7c7b\u578b\u4fee\u9970\u7b26<\/h2>\n
                \u5728GraphQL\u4e2d\uff0c\u53ea\u6709\u5bf9\u8c61\u7c7b\u578b\u3001\u6807\u91cf\u7c7b\u578b\u548c\u679a\u4e3e\u7c7b\u578b\u662f\u53ef\u4ee5\u5b9a\u4e49\u7684\u3002\u4f46\u662f\uff0c\u5728\u6a21\u5f0f\u7684\u5176\u4ed6\u90e8\u5206\u6216\u67e5\u8be2\u53d8\u91cf\u7684\u58f0\u660e\u4e2d\u4f7f\u7528\u7684\u7c7b\u578b\uff0c\u53ef\u4ee5\u6dfb\u52a0\u7c7b\u578b\u4fee\u9970\u7b26\u6765\u5f71\u54cd\u9a8c\u8bc1\u3002\u4e0b\u9762\u7684\u4ee3\u7801\u662f\u4e00\u4e2a\u4f8b\u5b50\u3002<\/p>\n
                type<\/span> Character<\/span> {<\/span>\r\n\tname<\/span>:<\/span> String<\/span>!<\/span>\r\n\tappearsIn<\/span>:<\/span> [<\/span>Episode<\/span>]!<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
                \u5b57\u6bb5\u540d\u4e3aString\u7c7b\u578b\uff0c\u5728\u7c7b\u578b\u540d\u79f0\u540e\u9762\u4f7f\u7528\u611f\u53f9\u53f7!\u6307\u5b9a\u4e3a\u975e\u7a7a(Non-Null)\u3002\u670d\u52a1\u5668\u4e0d\u5141\u8bb8\u8fd4\u56de\u8be5\u5b57\u6bb5\u7684null\u503c\u3002\u5982\u679c\u8fd4\u56de\u7684\u503c\u4e3anull\uff0c\u5219\u4f1a\u53d1\u751fGraphQL\u6267\u884c\u9519\u8bef\u3002\u8fd9\u6837\u5ba2\u6237\u7aef\u5c31\u4f1a\u88ab\u901a\u77e5\u5230\u53d1\u751f\u4e86\u95ee\u9898\u3002<\/p>\n
                \u5728\u5b9a\u4e49\u5b57\u6bb5\u53c2\u6570\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528\u975e\u7a7a\u4fee\u9970\u7b26\uff01\u3002\u5f53GraphQL\u5b57\u7b26\u4e32\u6216\u53d8\u91cf\u53c2\u6570\u4f20\u9012\u4e86\u7a7a\u503c\u65f6\uff0cGraphQL\u670d\u52a1\u5668\u4f1a\u8fd4\u56de\u9a8c\u8bc1\u9519\u8bef\u3002<\/p>\n
                query<\/span> DroidById<\/span>(<\/span>$id<\/span>:<\/span> ID<\/span>!)<\/span> {<\/span>\r\n\tdroid<\/span>(<\/span>id<\/span>:<\/span> $id<\/span>)<\/span> {<\/span>\r\n\t\tname<\/span>\r\n\t}<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
                {<\/span>\r\n\t\"id\"<\/span>:<\/span> null<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
                {<\/span>\r\n\t\"errors\"<\/span>:<\/span> [<\/span>\r\n\t\t{<\/span>\r\n\t\t\t\"message\"<\/span>:<\/span> \"Variable <\/span>\\\"<\/span>$id<\/span>\\\"<\/span> of non-null type <\/span>\\\"<\/span>ID!<\/span>\\\"<\/span> must not be null.\"<\/span>,<\/span>\r\n\t\t\t\"locations\"<\/span>:<\/span> [<\/span>\r\n\t\t\t\t{<\/span>\r\n\t\t\t\t\t\"line\"<\/span>:<\/span> 1<\/span>,<\/span>\r\n\t\t\t\t\t\"column\"<\/span>:<\/span> 17<\/span>\r\n\t\t\t\t}<\/span>\r\n\t\t\t]<\/span>\r\n\t\t}<\/span>\r\n\t]<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
                \u5728\u4e2d\u56fd\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u76f8\u540c\u7684\u65b9\u5f0f\u4f7f\u7528\u7c7b\u578b\u4fee\u9970\u7b26\u6765\u8868\u793a\u5217\u8868\u3002\u4ece\u4f7f\u7528\u5217\u8868\u4fee\u9970\u7b26\u7684\u5b57\u6bb5\u4e2d\uff0c\u5c06\u8fd4\u56de\u8be5\u7c7b\u578b\u7684\u6570\u7ec4\u3002\u5728\u6a21\u5f0f\u8bed\u8a00\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u89d2\u62ec\u53f7[]\u6765\u8868\u793a\u5217\u8868\u3002\u5b83\u8fd8\u53ef\u4ee5\u7528\u4f5c\u53c2\u6570\uff0c\u5e76\u4e14\u5728\u9a8c\u8bc1\u9636\u6bb5\uff0c\u503c\u5fc5\u987b\u662f\u4e00\u4e2a\u6570\u7ec4\u3002<\/p>\n
                Non-Null\u4fee\u98fe\u5b50\u548c\u5217\u8868\u4fee\u9970\u5b50\u53ef\u4ee5\u7ed3\u5408\u4f7f\u7528\u3002\u4f8b\u5982\uff0c\u4e0b\u9762\u7684\u4ee3\u7801\u662f\u5b9a\u4e49Non-Null\u5b57\u7b26\u4e32\u5217\u8868\u7684\u4e00\u4e2a\u4f8b\u5b50\u3002<\/p>\n
                myField:<\/span> [String<\/span>!<\/span>]<\/span>\r\n<\/code><\/pre>\n
                \u5217\u8868\u672c\u8eab\u53ef\u4ee5\u4e3anull\uff0c\u7a7a\u5217\u8868\u4e5f\u662f\u5141\u8bb8\u7684\u3002\u4f46\u662f\uff0c\u4e0d\u80fd\u62e5\u6709null\u6210\u5458\u3002\u4ee5\u4e0b\u4ee3\u7801\u793a\u4f8b\u662f\u5173\u4e8eJSON\u7684\u3002<\/p>\n
                myField:<\/span> null<\/span> \/\/<\/span> \u6709\u52b9<\/span>\r\nmyField:<\/span> []<\/span> \/\/<\/span> \u6709\u52b9<\/span>\r\nmyField:<\/span> [<\/span>'a'<\/span>,<\/span> 'b'<\/span>]<\/span> \/\/<\/span> \u6709\u52b9<\/span>\r\nmyField:<\/span> [<\/span>'a'<\/span>,<\/span> null<\/span>,<\/span> 'b'<\/span>]<\/span> \/\/<\/span> \u30a8\u30e9\u30fc<\/span>\r\n<\/code><\/pre>\n
                \u6839\u636e\u9700\u8981\uff0c\u53ef\u4ee5\u5c06\u975e\u7a7a\u4fee\u9970\u7b26\u548c\u5217\u8868\u4fee\u9970\u7b26\u5d4c\u5957\u591a\u5c42\u3002<\/p>\n
                \u63a5\u53e3<\/h2>\n
                \u4e0e\u8bb8\u591a\u5176\u4ed6\u7c7b\u578b\u7cfb\u7edf\u4e00\u6837\uff0cGraphQL\u4e5f\u652f\u6301\u63a5\u53e3\u3002\u63a5\u53e3\u662f\u62bd\u8c61\u7c7b\u578b\uff0c\u5728\u5b9e\u73b0\u65f6\u5fc5\u987b\u5177\u5907\u7279\u5b9a\u5b57\u6bb5\u7684\u7ec4\u5408\u3002<\/p>\n
                \u4f8b\u5982\uff0c\u4e0b\u9762\u7684\u4ee3\u7801\u662f\u8868\u793a\u300a\u661f\u7403\u5927\u6218\u300b\u4e09\u90e8\u66f2\u89d2\u8272\u7684\u63a5\u53e3Character\u7684\u4f8b\u5b50\u3002<\/p>\n
                interface<\/span> Character<\/span> {<\/span>\r\n\tid<\/span>:<\/span> ID<\/span>!<\/span>\r\n\tname<\/span>:<\/span> String<\/span>!<\/span>\r\n\tfriends<\/span>:<\/span> [<\/span>Character<\/span>]<\/span>\r\n\tappearsIn<\/span>:<\/span> [<\/span>Episode<\/span>]!<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
                \u5b9e\u73b0Character\u7684\u7c7b\u578b\u5fc5\u987b\u51c6\u786e\u5730\u5177\u5907\u8fd9\u4e9b\u5b57\u6bb5\uff0c\u6bcf\u4e2a\u5b57\u6bb5\u90fd\u9700\u8981\u5177\u6709\u76f8\u5e94\u7684\u53c2\u6570\u548c\u8fd4\u56de\u503c\u7c7b\u578b\u3002<\/p>\n
                \u4f8b\u5982\uff0c\u4ee5\u4e0b\u662f\u4e00\u79cd\u80fd\u591f\u5b9e\u73b0Character\u7c7b\u578b\u7684Human\u548cDroid\u7684\u793a\u4f8b\u3002<\/p>\n
                type<\/span> Human<\/span> implements<\/span> Character<\/span> {<\/span>\r\n\tid<\/span>:<\/span> ID<\/span>!<\/span>\r\n\tname<\/span>:<\/span> String<\/span>!<\/span>\r\n\tfriends<\/span>:<\/span> [<\/span>Character<\/span>]<\/span>\r\n\tappearsIn<\/span>:<\/span> [<\/span>Episode<\/span>]!<\/span>\r\n\tstarships<\/span>:<\/span> [<\/span>Starship<\/span>]<\/span>\r\n\ttotalCredits<\/span>:<\/span> Int<\/span>\r\n}<\/span>\r\n\r\ntype<\/span> Droid<\/span> implements<\/span> Character<\/span> {<\/span>\r\n\tid<\/span>:<\/span> ID<\/span>!<\/span>\r\n\tname<\/span>:<\/span> String<\/span>!<\/span>\r\n\tfriends<\/span>:<\/span> [<\/span>Character<\/span>]<\/span>\r\n\tappearsIn<\/span>:<\/span> [<\/span>Episode<\/span>]!<\/span>\r\n\tprimaryFunction<\/span>:<\/span> String<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
                \u8fd9\u4e24\u79cd\u7c7b\u578b\u90fd\u5177\u5907Character\u63a5\u53e3\u6240\u5b9a\u4e49\u7684\u6240\u6709\u5b57\u6bb5\u3002\u6b64\u5916\uff0cHuman\u62e5\u6709starships\u548ctotalCredits\uff0c\u800cDroid\u5177\u6709primaryFunction\uff0c\u8fd9\u4e9b\u90fd\u662f\u5b83\u4eec\u5404\u81ea\u5b9e\u73b0Character\u63a5\u53e3\u4e4b\u5916\u7684\u72ec\u6709\u9644\u52a0\u5b57\u6bb5\u3002<\/p>\n
                \u5f53\u4f60\u60f3\u8981\u8fd4\u56de\u5bf9\u8c61\u6216\u5176\u7ec4\u5408\u65f6\uff0c\u4f7f\u7528\u63a5\u53e3\u4f1a\u5f88\u6709\u7528\u3002\u7136\u800c\uff0c\u53ef\u80fd\u5b58\u5728\u5b9e\u73b0\u4e86\u540c\u4e00\u63a5\u53e3\u4f46\u5177\u6709\u4e0d\u540c\u7c7b\u578b\u7684\u60c5\u51b5\u3002\u4f8b\u5982\uff0c\u4e0b\u9762\u7684\u4ee3\u7801\u67e5\u8be2\u4f1a\u5bfc\u81f4\u9519\u8bef\u3002<\/p>\n
                query<\/span> HeroForEpisode<\/span>(<\/span>$ep<\/span>:<\/span> Episode<\/span>!)<\/span> {<\/span>\r\n\thero<\/span>(<\/span>episode<\/span>:<\/span> $ep<\/span>)<\/span> {<\/span>\r\n\t\tname<\/span>\r\n\t\tprimaryFunction<\/span>\r\n\t}<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
                {<\/span>\r\n\t\"ep\"<\/span>:<\/span> \"JEDI\"<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
                {<\/span>\r\n\t\"errors\"<\/span>:<\/span> [<\/span>\r\n\t\t{<\/span>\r\n\t\t\t\"message\"<\/span>:<\/span> \"Cannot query field <\/span>\\\"<\/span>primaryFunction<\/span>\\\"<\/span> on type <\/span>\\\"<\/span>Character<\/span>\\\"<\/span>. Did you mean to use an inline fragment on <\/span>\\\"<\/span>Droid<\/span>\\\"<\/span>?\"<\/span>,<\/span>\r\n\t\t\t\"locations\"<\/span>:<\/span> [<\/span>\r\n\t\t\t\t{<\/span>\r\n\t\t\t\t\t\"line\"<\/span>:<\/span> 4<\/span>,<\/span>\r\n\t\t\t\t\t\"column\"<\/span>:<\/span> 5<\/span>\r\n\t\t\t\t}<\/span>\r\n\t\t\t]<\/span>\r\n\t\t}<\/span>\r\n\t]<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
                \u82f1\u96c4\u5b57\u6bb5\u8fd4\u56deCharacter\u7c7b\u578b\u3002\u6839\u636e\u53c2\u6570episode\u7684\u4e0d\u540c\uff0c\u5b83\u53ef\u4ee5\u662fHuman\u7c7b\u578b\u6216Droid\u7c7b\u578b\u3002\u5728\u8fd9\u4e2a\u4ee3\u7801\u793a\u4f8b\u7684\u67e5\u8be2\u4e2d\uff0c\u53ea\u80fd\u67e5\u8be2Character\u63a5\u53e3\u5b9a\u4e49\u7684\u5b57\u6bb5\u3002\u6362\u53e5\u8bdd\u8bf4\uff0cprimaryFunction\u5b57\u6bb5\u4e0d\u5305\u542b\u5728\u5185\u3002<\/p>\n
                \u4ee5\u4e0b\u662f\u9519\u8bef\u6d88\u606f\u7684\u7ed3\u679c\u3002\u7279\u5b9a\u5bf9\u8c61\u7c7b\u578b\uff08Droid\uff09\u7684\u5b57\u6bb5\u5fc5\u987b\u4f7f\u7528\u5185\u8054\u7247\u6bb5\u8fdb\u884c\u67e5\u8be2\u3002<\/p>\n
                \u65e0\u6cd5\u5728\u7c7b\u578b\u4e3a”Character”\u7684\u5b57\u6bb5\u4e0a\u67e5\u8be2”primaryFunction”\u3002\u4f60\u662f\u5426\u6253\u7b97\u5728”Droid”\u4e0a\u4f7f\u7528\u5185\u8054\u7247\u6bb5\uff1f<\/p><\/blockquote>\n
                query<\/span> HeroForEpisode<\/span>(<\/span>$ep<\/span>:<\/span> Episode<\/span>!)<\/span> {<\/span>\r\n\thero<\/span>(<\/span>episode<\/span>:<\/span> $ep<\/span>)<\/span> {<\/span>\r\n\t\tname<\/span>\r\n\t\t...<\/span> on<\/span> Droid<\/span> {<\/span>\r\n\t\t\tprimaryFunction<\/span>\r\n\t\t}<\/span>\r\n\t}<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
                {<\/span>\r\n\t\"ep\"<\/span>:<\/span> \"JEDI\"<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
                {<\/span>\r\n\t\"data\"<\/span>:<\/span> {<\/span>\r\n\t\t\"hero\"<\/span>:<\/span> {<\/span>\r\n\t\t\t\"name\"<\/span>:<\/span> \"R2-D2\"<\/span>,<\/span>\r\n\t\t\t\"primaryFunction\"<\/span>:<\/span> \"Astromech\"<\/span>\r\n\t\t}<\/span>\r\n\t}<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
                \u8bf7\u9605\u8bfb\u300cGraphQL: \u67e5\u8be2\u548c\u53d8\u66f4\u300d\u4e2d\u7684\u300c\u5185\u8054\u7247\u6bb5\u300d\uff0c\u4ee5\u83b7\u53d6\u66f4\u8be6\u7ec6\u7684\u4fe1\u606f\u3002<\/p>\n
                \u8054\u5408\u578b<\/h2>\n
                \u8054\u5408\u7c7b\u578b\u6709\u4e00\u4e9b\u4e0e\u63a5\u53e3\u7c7b\u4f3c\u7684\u7279\u70b9\uff0c\u4f46\u662f\u5b83\u4e0d\u80fd\u6307\u5b9a\u7c7b\u578b\u4e4b\u95f4\u7684\u5171\u540c\u5b57\u6bb5\u3002<\/p>\n
                union<\/span> SearchResult<\/span> =<\/span> Human<\/span> |<\/span> Droid<\/span> |<\/span> Starship<\/span>\r\n<\/code><\/pre>\n
                \u5728\u6a21\u5f0f\u4e2d\u8fd4\u56deSearchResult\u7c7b\u578b\uff0c\u5b83\u53ef\u4ee5\u662fHuman\u3001Droid\u3001Starship\u4e2d\u7684\u4efb\u610f\u4e00\u4e2a\u3002\u8bf7\u6ce8\u610f\uff0c\u8054\u5408\u7c7b\u578b\u7684\u6210\u5458\u5fc5\u987b\u662f\u5177\u4f53\u7684\u5bf9\u8c61\u7c7b\u578b\uff0c\u65e0\u6cd5\u901a\u8fc7\u63a5\u53e3\u6216\u5176\u4ed6\u8054\u5408\u7c7b\u578b\u521b\u5efa\u8054\u5408\u7c7b\u578b\u3002<\/p>\n
                \u5982\u679c\u8981\u67e5\u8be2\u8fd4\u56deSearchResult\u8054\u5408\u7c7b\u578b\u7684\u5b57\u6bb5\uff0c\u5e76\u4f7f\u5f97\u4efb\u4f55\u5b57\u6bb5\u90fd\u53ef\u4ee5\u88ab\u8bf7\u6c42\uff0c\u90a3\u4e48\u9700\u8981\u4f7f\u7528\u5185\u8054\u7247\u6bb5\u3002<\/p>\n
                {<\/span>\r\n\tsearch<\/span>(<\/span>text<\/span>:<\/span> \"an\"<\/span>)<\/span> {<\/span>\r\n\t\t__typename<\/span>\r\n\t\t...<\/span> on<\/span> Human<\/span> {<\/span>\r\n\t\t\tname<\/span>\r\n\t\t\theight<\/span>\r\n\t\t}<\/span>\r\n\t\t...<\/span> on<\/span> Droid<\/span> {<\/span>\r\n\t\t\tname<\/span>\r\n\t\t\tprimaryFunction<\/span>\r\n\t\t}<\/span>\r\n\t\t...<\/span> on<\/span> Starship<\/span> {<\/span>\r\n\t\t\tname<\/span>\r\n\t\t\tlength<\/span>\r\n\t\t}<\/span>\r\n\t}<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
                {<\/span>\r\n\t\"data\"<\/span>:<\/span> {<\/span>\r\n\t\t\"search\"<\/span>:<\/span> [<\/span>\r\n\t\t\t{<\/span>\r\n\t\t\t\t\"__typename\"<\/span>:<\/span> \"Human\"<\/span>,<\/span>\r\n\t\t\t\t\"name\"<\/span>:<\/span> \"Han Solo\"<\/span>,<\/span>\r\n\t\t\t\t\"height\"<\/span>:<\/span> 1.8<\/span>\r\n\t\t\t},<\/span>\r\n\t\t\t{<\/span>\r\n\t\t\t\t\"__typename\"<\/span>:<\/span> \"Human\"<\/span>,<\/span>\r\n\t\t\t\t\"name\"<\/span>:<\/span> \"Leia Organa\"<\/span>,<\/span>\r\n\t\t\t\t\"height\"<\/span>:<\/span> 1.5<\/span>\r\n\t\t\t},<\/span>\r\n\t\t\t{<\/span>\r\n\t\t\t\t\"__typename\"<\/span>:<\/span> \"Starship\"<\/span>,<\/span>\r\n\t\t\t\t\"name\"<\/span>:<\/span> \"TIE Advanced x1\"<\/span>,<\/span>\r\n\t\t\t\t\"length\"<\/span>:<\/span> 9.2<\/span>\r\n\t\t\t}<\/span>\r\n\t\t]<\/span>\r\n\t}<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
                __typename\u5b57\u6bb5\u4f1a\u88ab\u89e3\u6790\u4e3aString\u7c7b\u578b\uff0c\u5728\u5ba2\u6237\u7aef\u4e0a\u53ef\u4ee5\u76f8\u4e92\u533a\u5206\u4e0d\u540c\u7684\u6570\u636e\u7c7b\u578b\u3002<\/p>\n
                \u987a\u4fbf\u8bf4\u4e00\u4e0b\uff0cCharacter\u662fHuman\u548cDroid\u5171\u540c\u5b9e\u73b0\u7684\u63a5\u53e3\u3002\u56e0\u6b64\uff0c\u5171\u540c\u7684\u5b57\u6bb5\u4e0d\u9700\u8981\u4ece\u591a\u79cd\u7c7b\u578b\u4e2d\u5404\u81ea\u83b7\u53d6\uff0c\u800c\u662f\u53ef\u4ee5\u4e00\u6b21\u6027\u5730\u96c6\u4e2d\u5728\u4e00\u4e2a\u5730\u65b9\u8fdb\u884c\u67e5\u8be2\uff08\u7ed3\u679c\u4e0e\u4e0a\u8ff0\u4ee3\u7801\u793a\u4f8b\u76f8\u540c\uff09\u3002<\/p>\n
                {<\/span>\r\n\tsearch<\/span>(<\/span>text<\/span>:<\/span> \"an\"<\/span>)<\/span> {<\/span>\r\n\t\t__typename<\/span>\r\n\t\t...<\/span> on<\/span> Character<\/span> {<\/span>\r\n\t\t\tname<\/span>\r\n\t\t}<\/span>\r\n\t\t...<\/span> on<\/span> Human<\/span> {<\/span>\r\n\t\t\theight<\/span>\r\n\t\t}<\/span>\r\n\t\t...<\/span> on<\/span> Droid<\/span> {<\/span>\r\n\t\t\tprimaryFunction<\/span>\r\n\t\t}<\/span>\r\n\t\t...<\/span> on<\/span> Starship<\/span> {<\/span>\r\n\t\t\tname<\/span>\r\n\t\t\tlength<\/span>\r\n\t\t}<\/span>\r\n\t}<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
                \u8bf7\u6ce8\u610f\uff0c\u5728\u8fd9\u4e2a\u4ee3\u7801\u793a\u4f8b\u4e2d\uff0c\u5185\u8054\u7247\u6bb5\u7684Starship\u6709\u4e00\u4e2a\u6307\u5b9a\u7684name\u3002\u7531\u4e8eStarship\u6ca1\u6709\u5b9e\u73b0Character\u63a5\u53e3\uff0c\u5982\u679c\u4e0d\u5305\u542bname\uff0c\u5b83\u5c31\u4e0d\u4f1a\u663e\u793a\u5728\u7ed3\u679c\u4e2d\u3002<\/p>\n
                \u8f93\u5165\u7c7b\u578b<\/h2>\n
                \u8fc7\u53bb\u6211\u4eec\u63d0\u5230\u7684\u662f\u5c06\u679a\u4e3e\u7c7b\u578b\u3001\u5b57\u7b26\u4e32\u7b49\u6807\u91cf\u4f5c\u4e3a\u53c2\u6570\u4f20\u9012\u7ed9\u5b57\u6bb5\u3002\u4f46\u662f\uff0c\u5373\u4f7f\u662f\u590d\u6742\u7684\u5bf9\u8c61\u4e5f\u53ef\u4ee5\u8f7b\u677e\u4f20\u9012\u3002\u7279\u522b\u6709\u7528\u7684\u662f\u5728\u9700\u8981\u66f4\u6539\u65f6\uff0c\u60a8\u53ef\u80fd\u60f3\u8981\u5c06\u6574\u4e2a\u521b\u5efa\u7684\u5bf9\u8c61\u4f20\u9012\u8fc7\u53bb\u3002\u5728GraphQL\u6a21\u5f0f\u8bed\u8a00\u4e2d\uff0c\u8f93\u5165\u7c7b\u578b\u770b\u8d77\u6765\u4e0e\u666e\u901a\u5bf9\u8c61\u5b8c\u5168\u76f8\u540c\u3002\u4e0d\u540c\u4e4b\u5904\u5728\u4e8e\u4f7f\u7528input\u5173\u952e\u5b57\u4ee3\u66fftype\u3002<\/p>\n
                input<\/span> ReviewInput<\/span> {<\/span>\r\n\tstars<\/span>:<\/span> Int<\/span>!<\/span>\r\n\tcommentary<\/span>:<\/span> String<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
                \u4ee5\u4e0b\u662f\u4f7f\u7528\u8f93\u5165\u5bf9\u8c61\u7c7b\u578b\u8fdb\u884c\u66f4\u6539\u7684\u4ee3\u7801\u3002<\/p>\n
                mutation<\/span> CreateReviewForEpisode<\/span>(<\/span>$ep<\/span>:<\/span> Episode<\/span>!,<\/span> $review<\/span>:<\/span> ReviewInput<\/span>!)<\/span> {<\/span>\r\n\tcreateReview<\/span>(<\/span>episode<\/span>:<\/span> $ep<\/span>,<\/span> review<\/span>:<\/span> $review<\/span>)<\/span> {<\/span>\r\n\t\tstars<\/span>\r\n\t\tcommentary<\/span>\r\n\t}<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
                {<\/span>\r\n\t\"ep\"<\/span>:<\/span> \"JEDI\"<\/span>,<\/span>\r\n\t\"review\"<\/span>:<\/span> {<\/span>\r\n\t\t\"stars\"<\/span>:<\/span> 5<\/span>,<\/span>\r\n\t\t\"commentary\"<\/span>:<\/span> \"This is a great movie!\"<\/span>\r\n\t}<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
                {<\/span>\r\n\t\"data\"<\/span>:<\/span> {<\/span>\r\n\t\t\"createReview\"<\/span>:<\/span> {<\/span>\r\n\t\t\t\"stars\"<\/span>:<\/span> 5<\/span>,<\/span>\r\n\t\t\t\"commentary\"<\/span>:<\/span> \"This is a great movie!\"<\/span>\r\n\t\t}<\/span>\r\n\t}<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
                \u8f93\u5165\u5bf9\u8c61\u7c7b\u578b\u7684\u5b57\u6bb5\u53ef\u4ee5\u8fdb\u4e00\u6b65\u5f15\u7528\u81ea\u8eab\u7684\u8f93\u5165\u5bf9\u8c61\u7c7b\u578b\u3002\u4f46\u662f\uff0c\u5728\u6a21\u5f0f\u4e2d\u8f93\u5165\u7c7b\u578b\u548c\u8f93\u51fa\u7c7b\u578b\u4e0d\u80fd\u6df7\u5408\u4f7f\u7528\u3002\u6b64\u5916\uff0c\u8f93\u5165\u5bf9\u8c61\u7c7b\u578b\u7684\u5b57\u6bb5\u4e0d\u80fd\u63a5\u53d7\u53c2\u6570\u3002<\/p>\n
                GraphQL\u7cfb\u5217\u7684\u57fa\u672c\u6982\u5ff5<\/h3>\n
                \u300cGraphQL: \u67e5\u8be2\u548c\u53d8\u66f4\u300d
                \n\u300cGraphQL: \u6a21\u5f0f\u548c\u7c7b\u578b\u300d
                \n\u300cGraphQL: \u9a8c\u8bc1\u300d
                \n\u300cGraphQL: \u6267\u884c\u300d
                \n\u300cGraphQL: \u5185\u7701\u300d<\/p>\n","protected":false},"excerpt":{"rendered":"
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