- Angular\u3067\u306e\u30c7\u30fc\u30bf\u7ba1\u7406\u306e\u57fa\u790e\uff08\u30e2\u30c7\u30eb\u4f5c\u6210\uff09<\/ul>\n<\/li>\n<\/ul>\n
- \n
- HTML\u3067\u306e\u5206\u5c90(*ngIf)<\/ul>\n<\/li>\n<\/ul>\n
- \n
- ES6\u3068Typescript\u306e\u57fa\u790e<\/ul>\n<\/li>\n<\/ul>\n
Typescript\u306e\u578b\u5b9a\u7fa9\u306b\u3064\u3044\u3066<\/p>\n
Angular\u3067\u306e\u30c7\u30fc\u30bf\u7ba1\u7406\u306e\u57fa\u790e2<\/p>\n
\u30b5\u30fc\u30d3\u30b9\u30af\u30e9\u30b9\u306e\u4f5c\u6210<\/p>\n
\u6211\u4f1a\u7ee7\u7eed\u505a\u4e0b\u53bb\u3002<\/p>\n
\u8fd9\u7bc7\u6587\u7ae0\u7684\u6e90\u4ee3\u7801<\/h2>\n
https:\/\/github.com\/seteen\/AngularGuides\/tree\/\u7b2c5\u4e2a\u5165\u95e8<\/p>\n
TypeScript\u7684\u57fa\u7840<\/h2>\n
\u5728Angular\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528Typescript\u3002<\/p>\n
\u7531\u65bc\u4ee5\u5f8c\u6211\u5011\u5c07\u4f7f\u7528\u66f4\u591a\u7684TypeScript\u4ee3\u78bc\uff0c\u56e0\u6b64\u73fe\u5728\u5c31\u8b93\u6211\u5011\u5b78\u7fd2\u57fa\u790e\u77e5\u8b58\u5427\u3002<\/p>\n
\u7c7b\u578b\u7684\u89c4\u5b9a de<\/h3>\n
\u6211\u5011\u5df2\u7d93\u591a\u6b21\u63d0\u5230\u904e\uff0cTypeScript \u4e2d\uff0c\u6211\u5011\u6703\u70ba\u6bcf\u500b\u8b8a\u6578\u548c\u65b9\u6cd5\u5b9a\u7fa9\u985e\u578b\u3002<\/p>\n
export<\/span> class<\/span> Test<\/span> {<\/span>\r\n name<\/span>:<\/span> string<\/span>;<\/span> \/\/ <- \u3053\u308c\u304c\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u5909\u6570<\/span>\r\n\r\n toString<\/span>(<\/span>input<\/span>:<\/span> string<\/span>):<\/span> string<\/span> {<\/span> \/\/ <- \u3053\u308c\u304c\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u30e1\u30bd\u30c3\u30c9<\/span>\r\n return<\/span> input<\/span>;<\/span>\r\n }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n\u7528\u4e2d\u6587\u539f\u751f\u8bed\u8a00\u91ca\u4e49\uff1a\u8fd9\u6837\u4e00\u6765\uff0c<\/p>\n
- \n
- \n
- \u5909\u6570\u5b9a\u7fa9\u306f \u5909\u6570\u540d: \u578b<\/ul>\n<\/li>\n<\/ul>\n
- \n
- string : \u6587\u5b57\u5217<\/ul>\n<\/li>\n<\/ul>\n
- \n
- number : \u6570\u5024<\/ul>\n<\/li>\n<\/ul>\n
- \n
- boolean : \u771f\u507d\u5024<\/ul>\n<\/li>\n<\/ul>\n
<\/p>\n
- void: \u4f55\u3082\u8fd4\u3055\u306a\u3044\u30e1\u30bd\u30c3\u30c9\u306e\u578b<\/ul>\n
\u8fd9\u4e9b\u662f\u81ea\u5df1\u5b9a\u4e49\u7684\u7c7b\u4e5f\u662f\u7c7b\u578b\u3002\u53e6\u5916\uff0c\u5bf9\u4e8e\u6570\u7ec4\u7684\u8868\u793a\u65b9\u6cd5\u662f\u5728\u7c7b\u578b\u540e\u9762\u52a0\u4e0a []\uff0c\u4f8b\u5982 string[]\u3002<\/p>\n
names<\/span>:<\/span> string<\/span>[]<\/span>\r\n<\/code><\/pre>\n\u53e6\u5916\uff0c\u8fd8\u6709\u4e00\u79cd\u540d\u4e3a “\u4efb\u610f” \u7684\u7c7b\u578b\uff0c\u8868\u793a “\u65e0\u8bba\u4ec0\u4e48\u90fd\u53ef\u4ee5”\u3002<\/p>\n
\u5f53\u4e0d\u77e5\u9053\u5e94\u9009\u62e9\u54ea\u79cd\u7c7b\u578b\u65f6\uff0c\u53ef\u4ee5\u8003\u8651\u8fd9\u4e2a\u6700\u540e\u7684\u9009\u62e9\u3002<\/p>\n
\u754c\u9762<\/h4>\n
\u5728Typescript\u4e2d\uff0c\u6709\u63a5\u53e3\uff08Interface\uff09\u7684\u6982\u5ff5\u3002\u5b83\u53ef\u4ee5\u50cfJava\u7b49\u8bed\u8a00\u4e2d\u7684\u7c7b\u7ee7\u627f\u63a5\u53e3\u4e00\u6837\u4f7f\u7528\uff0c\u8fd8\u53ef\u4ee5\u5728\u65b9\u6cd5\u53c2\u6570\u7b49\u590d\u6742\u60c5\u51b5\u4e0b\u4f7f\u7528\uff0c\u5e76\u4e14\u53ef\u4ee5\u5bf9\u5bf9\u8c61\u7684\u952e\u8fdb\u884c\u7ea6\u675f\u3002<\/p>\n
\u6211\u4eec\u6765\u770b\u4e2a\u4f8b\u5b50\u3002<\/p>\n
export<\/span> interface<\/span> TestInterface<\/span> {<\/span>\r\n name<\/span>:<\/span> string<\/span>;<\/span>\r\n price<\/span>:<\/span> number<\/span>;<\/span>\r\n description<\/span>?:<\/span> string<\/span>;<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n\u6709\u4e00\u4e2a\u53eb\u4f5c\u300c\u3068\u3044\u3046\u63a5\u53e3\uff08Interface\uff09\u300d\u7684\u7ec4\u4ef6\u3002<\/p>\n
testMethod<\/span>(<\/span>input<\/span>:<\/span> TestInterface<\/span>):<\/span> void<\/span> {<\/span>\r\n ...<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n\u5047\u8bbe\u6709\u4e00\u4e2a\u63a5\u53d7TestInterface\u4f5c\u4e3a\u53c2\u6570\u7684\u65b9\u6cd5\u3002<\/p>\n
\u901a\u8fc7\u4f7f\u7528Interface\uff0c\u53ef\u4ee5\u5bf9\u7a0d\u590d\u6742\u7684\u53c2\u6570\u8fdb\u884c\u7ea6\u675f\u3002\u4e0a\u8ff0\u4ee3\u7801\u7684\u610f\u601d\u662f\uff0cname\u548cprice\u662f\u5fc5\u9700\u7684\uff0c\u800cdescription\u5e26\u6709?\uff0c\u8868\u793a\u5b83\u662f\u53ef\u9009\u7684\uff08\u53ef\u4ee5\u6709\u4e5f\u53ef\u4ee5\u6ca1\u6709\uff09\u3002<\/p>\n
\u56e0\u6b64\uff0c\u4f8b\u5982\u5bf9\u4e8e\u8fd9\u4e2a\u65b9\u6cd5\uff0c<\/p>\n
this<\/span>.<\/span>testMethod<\/span>({<\/span>name<\/span>:<\/span> '<\/span>test<\/span>'<\/span>});<\/span>\r\n<\/code><\/pre>\n\u5f53\u5c1d\u8bd5\u6267\u884c\u65f6\uff0c\u56e0\u4e3a\u4e0d\u5b58\u5728\u4ef7\u683c\u800c\u5bfc\u81f4\u51fa\u73b0\u9519\u8bef\u3002<\/p>\n
![\"001.png\"](\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d3a3037434c4406c7cead\/35-0.png\" "\\"\\"")
<\/div>\n\u53e6\u5916\uff0c\u5373\u4f7f\u6dfb\u52a0\u4e0d\u5b58\u5728\u7684\u5143\u7d20\uff0c\u4e5f\u4f1a\u51fa\u73b0\u9519\u8bef\u3002<\/p>\n
this<\/span>.<\/span>testMethod<\/span>({<\/span>name<\/span>:<\/span> '<\/span>test<\/span>'<\/span>,<\/span> price<\/span>:<\/span> 100<\/span>,<\/span> extend<\/span>:<\/span> '<\/span>feawfeaw<\/span>'<\/span>});<\/span>\r\n<\/code><\/pre>\n![\"002.png\"](\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d3a3037434c4406c7cead\/38-0.png\" "\\"\\"")
<\/div>\n\u5217\u4e3e<\/h4>\n
\u540c\u6837\uff0c\u4e00\u4e2a\u610f\u5916\u5e38\u7528\u7684\u662fEnum\u3002\u5f53\u4e00\u4e2a\u53d8\u91cf\u53ea\u80fd\u53d6\u7279\u5b9a\u7684\u503c\u65f6\uff0c\u6211\u4eec\u4f1a\u4f7f\u7528\u5b83\u3002\u4f8b\u5982\uff0c\u4f5c\u4e3a\u72b6\u6001\uff0c\u6709\u975e\u516c\u5f00\uff08unpublished\uff09\u548c\u516c\u5f00\uff08published\uff09\u4e24\u4e2a\u503c\uff0c\u5f53\u5b58\u5728\u4e00\u4e2a\u53d8\u91cf\u53ea\u80fd\u53d6\u8fd9\u4e24\u4e2a\u503c\u65f6\u3002<\/p>\n
export<\/span> enum<\/span> Status<\/span> {<\/span>\r\n unpublished<\/span> =<\/span> '<\/span>unpublished<\/span>'<\/span>,<\/span>\r\n published<\/span> =<\/span> '<\/span>published<\/span>'<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n\u5982\u679c\u53ea\u63a5\u6536\u6570\u5b57\uff0c\u5e76\u4e14\u53d6\u503c\u8303\u56f4\u4e3a\u975e\u516c\u5f00(0)\u548c\u516c\u5f00(1)\uff0c\u53ef\u4ee5\u5982\u4e0b\u6240\u8ff0\u3002<\/p>\n
export<\/span> enum<\/span> Status<\/span> {<\/span>\r\n unpublished<\/span>,<\/span>\r\n published<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n\u603b\u4e4b\uff0c\u5982\u679c\u6ca1\u6709\u4efb\u4f55\u6307\u5b9a\uff0c\u5c06\u6309\u7167\u4ece\u4e0a\u5230\u4e0b\u7684\u987a\u5e8f\u4ece0\u5f00\u59cb\u5206\u914d\u6570\u503c\u3002<\/p>\n
\u4f5c\u4e3a\u4f7f\u7528\u8005\u6765\u8bf4\uff0c<\/p>\n
export<\/span> class<\/span> TestClass<\/span> {<\/span>\r\n status<\/span>:<\/span> Status<\/span>;<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n\u5982\u4e0b\u6240\u8ff0\u3002 .)<\/p>\n
\u901a\u8fc7\u8fd9\u4e2a\u64cd\u4f5c\uff0cstatus\u53d8\u91cf\u53ea\u80fd\u9759\u6001\u5730\u5305\u542bStatus\u6240\u5b9a\u4e49\u7684\u503c\u3002<\/p>\n
\u6ce8\u610f\u4e8b\u9879\u662f\u4e0e\u679a\u4e3e\u7b49\u7c7b\u578b\u76f8\u5173\u7684\u9650\u5236\u3002<\/h4>\n
\u5b57\u7b26\u4e32\u3001\u6570\u5b57\u7b49\u53d8\u91cf\u7684\u7c7b\u578b\u6307\u5b9a\u4ee5\u53ca\u901a\u8fc7\u679a\u4e3e\u5bf9\u503c\u7684\u7ea6\u675f\uff0c\u8fd9\u4e9b\u53ea\u5728\u9759\u6001\u5206\u6790\u65f6\u6709\u6548\u3002
\n\u56e0\u6b64\uff0c\u5373\u4f7f\u52a8\u6001\u5730\u653e\u5165\u4e0d\u540c\u7c7b\u578b\u7684\u503c\uff0c\u5b83\u4e5f\u4e0d\u4f1a\u5728\u6b64\u65f6\u5f15\u53d1\u9519\u8bef\u3002\uff08\u4e0eJava\u7b49\u4e0d\u540c\uff09<\/p>\n\u8fd9\u662f\u56e0\u4e3a\u5728\u8fd0\u884c\u65f6\uff0c\u5b83\u4ee5 JavaScript \u7684\u5f62\u5f0f\u6267\u884c\uff0c\u6240\u4ee5\u65e0\u6cd5\u4eab\u53d7\u5230 TypeScript \u7684\u597d\u5904\u3002\u4f8b\u5982\uff0c\u5982\u679c\u5728 API \u4e2d\u539f\u672c\u9884\u671f\u662f\u5b57\u7b26\u4e32\uff0c\u4f46\u5b9e\u9645\u4f20\u5165\u4e86\u6570\u503c\uff0c\u5373\u4f7f\u8fdb\u884c\u8d4b\u503c\u4e5f\u4e0d\u4f1a\u62a5\u9519\u3002<\/p>\n
\u96d6\u7136\u985e\u578b\u7684\u9650\u5236\u5f88\u5f37\u5927\uff0c\u4f46\u662f\u4e5f\u6709\u9019\u6a23\u7684\u60c5\u6cc1\u5b58\u5728\uff0c\u6240\u4ee5\u8acb\u6ce8\u610f\u4e0d\u8981\u904e\u5ea6\u4f9d\u8cf4\u4ee5\u81f3\u65bc\u505c\u6b62\u601d\u8003\u3002<\/p>\n
\u63d0\u793a\uff1aTypeScript\u7684\u4fbf\u6377\u8bb0\u6cd5
\n\u4f8b\u5982\uff0c\u5047\u8bbe\u5df2\u5b9a\u4e49\u4e00\u4e2a\u540d\u4e3a params \u7684\u53d8\u91cf\uff0c
\n\u53ea\u9700\u5199\u4e0a { params }\uff0c\u5b83\u4f1a\u89e3\u6790\u4e3a { params: params }\u3002
\n\u975e\u5e38\u65b9\u4fbf\u3002<\/p><\/blockquote>\n\u79c1\u6709\u7684\u3001\u53d7\u4fdd\u62a4\u7684\u3001\u516c\u5171\u7684<\/h2>\n
\u5728TypeScript\u4e2d\uff0c\u6709private\uff0cprotected\uff0cpublic\u8fd9\u4e9b\u7528\u4e8e\u6307\u5b9a\u53d8\u91cf\u548c\u65b9\u6cd5\u4f5c\u7528\u57df\u7684\u4fee\u9970\u7b26\u53ef\u7528\u3002<\/p>\n
\n\u4fee\u98fe\u5b50\u30b9\u30b3\u30fc\u30d7private\u5b9a\u7fa9\u3055\u308c\u305f\u30af\u30e9\u30b9\u5185protected\u5b9a\u7fa9\u3055\u308c\u305f\u30af\u30e9\u30b9\u3068\u305d\u308c\u3092\u7d99\u627f\u3057\u3066\u3044\u308b\u30af\u30e9\u30b9public\u5916\u90e8\u304b\u3089\u30a2\u30af\u30bb\u30b9\u53ef\u80fd<\/div>\n<\/div>\n\u8fd9\u4e2a\u4fee\u9970\u7b26\u662f<\/p>\n
export<\/span> class<\/span> Test<\/span> {<\/span>\r\n private<\/span> name<\/span>:<\/span> string<\/span>;<\/span>\r\n\r\n protected<\/span> testMethod<\/span>():<\/span> string<\/span> {<\/span>\r\n ...<\/span>\r\n }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n\u5982\u679c\u6ca1\u6709\u6307\u5b9a\u4efb\u4f55\u4fee\u9970\u7b26\uff0c\u5219\u4f1a\u50cf\u8fd9\u6837\u4f7f\u7528\u3002\u5b83\u5c06\u88ab\u89c6\u4e3a\u516c\u5171(public)\u3002<\/p>\n
\u5728Angular\u4e2d\u7684\u6570\u636e\u7ba1\u7406\u57fa\u78402<\/h2>\n
\u5728Angular\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528Service\u7c7b\u6765\u7ba1\u7406API\u8bbf\u95ee\u548c\u8de8\u7ec4\u4ef6\u7684\u6570\u636e\u5904\u7406\u3002<\/p>\n
\u8ba9\u6211\u4eec\u521b\u5efa\u4e00\u4e2aProductService\u7c7b\uff0c\u628aProduct\u7684\u6570\u636e\u7ba1\u7406\u79fb\u5230\u7ec4\u4ef6\u4e4b\u5916\u3002<\/p>\n
\u521b\u5efa\u670d\u52a1\u7c7b<\/h3>\n
\u8ba9\u6211\u4eec\u4f7f\u7528Angular CLI\u6765\u521b\u5efa\u670d\u52a1\u3002<\/p>\n
# ng g service shared\/services\/product<\/span>\r\nCREATE src\/app\/shared\/services\/product.service.spec.ts (<\/span>380 bytes)<\/span>\r\nCREATE src\/app\/shared\/services\/product.service.ts (<\/span>136 bytes)<\/span>\r\n<\/code><\/pre>\n\u6211\u60f3\u5728 src\/app\/shared\/services\/ \u76ee\u5f55\u4e2d\u653e\u7f6e\u670d\u52a1\uff0c\u6240\u4ee5\u6211\u5c06\u5176\u5199\u6210\u4e86\u4e0a\u8ff0\u7684\u65b9\u5f0f\u3002<\/p>\n
\u8ba9\u6211\u4eec\u770b\u4e00\u4e0b\u521b\u5efa\u7684\u6587\u4ef6\u3002\u867d\u7136spec.ts\u6587\u4ef6\uff08\u6d4b\u8bd5\u6587\u4ef6\uff09\u4e5f\u5df2\u7ecf\u521b\u5efa\u4e86, \u4f46\u6211\u4eec\u6682\u65f6\u4e0d\u8003\u8651\u5b83\u3002<\/p>\n
import<\/span> {<\/span> Injectable<\/span> }<\/span> from<\/span> '<\/span>@angular\/core<\/span>'<\/span>;<\/span>\r\n\r\n@<\/span>Injectable<\/span>({<\/span>\r\n providedIn<\/span>:<\/span> '<\/span>root<\/span>'<\/span>\r\n})<\/span>\r\nexport<\/span> class<\/span> ProductService<\/span> {<\/span>\r\n\r\n constructor<\/span>()<\/span> {<\/span> }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n@Injectable\u662f\u4e00\u4e2a\u5728\u670d\u52a1\u7c7b\u4e2d\u4f7f\u7528\u7684\u9b54\u6cd5\u8bcd\u3002
\n\u5176\u4e2d\u5305\u542b{ providedIn: ‘root’ }\uff0c\u610f\u601d\u662f\u5728\u6839\u7ea7\u522b\u4f7f\u7528\u8fd9\u4e2a\u670d\u52a1\u3002<\/p>\n\u670d\u52a1\u7c7b\u4ee5\u6307\u5b9a\u7684providedIn\u5355\u4f4d\u8fdb\u884c\u5b9e\u4f8b\u5316\uff08\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\u662f\u6839\u7ea7\u522b\uff0c\u5373\u6574\u4e2a\u9879\u76ee\uff09\uff0c\u5e76\u4e14\u4e00\u4e2a\u5b9e\u4f8b\u88ab\u91cd\u590d\u4f7f\u7528\u3002\u53ef\u4ee5\u8ba4\u4e3a\u5b83\u7c7b\u4f3c\u4e8e\u5355\u4f8b\u6a21\u5f0f\u3002<\/p>\n
\u6211\u4eec\u5c06\u6dfb\u52a0\u4e00\u4e2a\u65b9\u6cd5\u6765\u83b7\u53d6\u4ea7\u54c1\u5217\u8868\u7684\u529f\u80fd\u3002<\/p>\n
\u6700\u540e\u6211\u4eec\u4f1a\u5728\u8fd9\u91cc\u8fdb\u884cAPI\u8bbf\u95ee\uff0c\u4f46\u73b0\u5728\u6211\u4eec\u4e0d\u4f1a\u8fdb\u884cAPI\u8bbf\u95ee\u3002<\/p>\n
import<\/span> {<\/span> Injectable<\/span> }<\/span> from<\/span> '<\/span>@angular\/core<\/span>'<\/span>;<\/span>\r\nimport<\/span> {<\/span> Product<\/span> }<\/span> from<\/span> '<\/span>..\/models\/product<\/span>'<\/span>;<\/span>\r\nimport<\/span> {<\/span> Observable<\/span>,<\/span> of<\/span> }<\/span> from<\/span> '<\/span>rxjs\/index<\/span>'<\/span>;<\/span>\r\n\r\n@<\/span>Injectable<\/span>({<\/span>\r\n providedIn<\/span>:<\/span> '<\/span>root<\/span>'<\/span>\r\n
<\/p>\n
- \n
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<\/p>\n
- \n
- \n
\u30e1\u30bd\u30c3\u30c9\u5b9a\u7fa9\u306f \u30e1\u30bd\u30c3\u30c9\u540d(\u5f15\u6570\u540d: \u5f15\u6570\u540d\u306e\u578b): \u30e1\u30bd\u30c3\u30c9\u306e\u578b { \u30e1\u30bd\u30c3\u30c9\u306e\u5185\u5bb9 }<\/p>\n
\u9700\u8981\u5199\u6210\u610f\u601d<\/p>\n
\u79cd\u7c7b\u7684\u7c7b\u578b<\/h3>\n
\u5728Typescript\u4e2d\u5e38\u5e38\u4f7f\u7528\u7684\u7c7b\u578b\u6709<\/p>\n
- \n
- \n
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<\/p>\n
- HTML\u3067\u306e\u30eb\u30fc\u30d7(*ngFor)<\/ul>\n
\u5b66\u4f1a\u4e86\u3002<\/p>\n
\u672c\u6587\u65e8\u5728\u8ba8\u8bba<\/p>\n
- \n
- \n
<\/p>\n
- \n