{"id":44685,"date":"2023-03-16T02:39:59","date_gmt":"2024-02-14T09:49:35","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/44685-2\/"},"modified":"2024-04-29T19:05:03","modified_gmt":"2024-04-29T11:05:03","slug":"44685-2","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/44685-2\/","title":{"rendered":""},"content":{"rendered":"

Golang\u3067\u306f\u3001
\n\u30b9\u30e9\u30a4\u30b9\uff08slice\uff09\u3001\u30de\u30c3\u30d7\uff08map\uff09\u3001\u30c1\u30e3\u30cd\u30eb\uff08channel\uff09\u306a\u3069\u306e\u53c2\u7167\u578b\u306e\u5909\u6570\u306f\u3001\u30c7\u30d5\u30a9\u30eb\u30c8\u3067nil\u3068\u3057\u3066\u521d\u671f\u5316\u3055\u308c\u307e\u3059\u3002
\n\u3053\u308c\u306f\u3001 \u53c2\u7167\u578b\u304c\u5185\u90e8\u7684\u306b\u306f\u30dd\u30a4\u30f3\u30bf\u3092\u6301\u3063\u3066\u304a\u308a\u3001nil\u306f\u30dd\u30a4\u30f3\u30bf\u304c\u7121\u52b9\u3067\u3042\u308b\u3053\u3068\u3092\u793a\u3059 \u305f\u3081\u3067\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u95a2\u6570\u304c\u30b9\u30e9\u30a4\u30b9\u3092\u8fd4\u3059\u5834\u5408\u3001\u305d\u306e\u30b9\u30e9\u30a4\u30b9\u304cnil\u3067\u3042\u308b\u3053\u3068\u306f\u6709\u52b9\u306a\u72b6\u614b\u3067\u3042\u308a\u3001\u30b3\u30f3\u30d1\u30a4\u30e9\u306f\u30a8\u30e9\u30fc\u3092\u751f\u6210\u3057\u307e\u305b\u3093\u3002<\/p>\n

\u30b9\u30e9\u30a4\u30b9\u306e\u521d\u671f\u5316<\/h2>\n

\u4ee5\u4e0b\u306f\u3001\u30b9\u30e9\u30a4\u30b9\u3092\u521d\u671f\u5316\u3057\u3001\u305d\u308c\u3092\u8fd4\u3059\u95a2\u6570\u306e\u4f8b\u3067\u3059\uff1a<\/p>\n

package<\/span> main<\/span>\r\n\r\nimport<\/span> \"fmt\"<\/span>\r\n\r\nfunc<\/span> main<\/span>()<\/span> {<\/span>\r\n    \/\/ \u521d\u671f\u5316<\/span>\r\n\tvar<\/span> slice<\/span> []<\/span>int<\/span>\r\n \r\n\tif<\/span> slice<\/span> ==<\/span> nil<\/span> {<\/span>\r\n\t\tfmt<\/span>.<\/span>Println<\/span>(<\/span>\"\u30b9\u30e9\u30a4\u30b9\u306fnil\u3067\u3059\"<\/span>)<\/span>\r\n\t}<\/span> else<\/span> {<\/span>\r\n\t\tfmt<\/span>.<\/span>Println<\/span>(<\/span>\"\u30b9\u30e9\u30a4\u30b9\u306fnil\u3067\u306f\u3042\u308a\u307e\u305b\u3093\"<\/span>)<\/span>\r\n\t}<\/span>\r\n     \/\/ \u7d50\u679c\uff1a \u30b9\u30e9\u30a4\u30b9\u306fnil\u3067\u3059<\/span>\r\n\r\n     fmt<\/span>.<\/span>Println<\/span>(<\/span>slice<\/span>)<\/span>\r\n     \/\/ \u7d50\u679c\uff1a <nil><\/span>\r\n}<\/span>\r\n\r\n<\/code><\/pre>\n
\u30de\u30c3\u30d7\u306e\u521d\u671f\u5316<\/h2>\n
\u4ee5\u4e0b\u306f\u3001\u30de\u30c3\u30d7\u3092\u521d\u671f\u5316\u3057\u3001\u305d\u308c\u3092\u8fd4\u3059\u95a2\u6570\u306e\u4f8b\u3067\u3059\uff1a<\/p>\n
package<\/span> main<\/span>\r\n\r\nimport<\/span> \"fmt\"<\/span>\r\n\r\nfunc<\/span> main<\/span>()<\/span> {<\/span>\r\n    \/\/ \u521d\u671f\u5316<\/span>\r\n\tvar<\/span> m<\/span> map<\/span>[<\/span>string<\/span>]<\/span>int<\/span>\r\n\r\n\tif<\/span> m<\/span> ==<\/span> nil<\/span> {<\/span>\r\n\t\tfmt<\/span>.<\/span>Println<\/span>(<\/span>\"\u30de\u30c3\u30d7\u306fnil\u3067\u3059\"<\/span>)<\/span>\r\n\t}<\/span> else<\/span> {<\/span>\r\n\t\tfmt<\/span>.<\/span>Println<\/span>(<\/span>\"\u30de\u30c3\u30d7\u306fnil\u3067\u306f\u3042\u308a\u307e\u305b\u3093\"<\/span>)<\/span>\r\n\t}<\/span>\r\n     \/\/ \u7d50\u679c\uff1a \u30de\u30c3\u30d7\u306fnil\u3067\u3059<\/span>\r\n\r\n     fmt<\/span>.<\/span>Println<\/span>(<\/span>m<\/span>)<\/span>\r\n     \/\/ \u7d50\u679c\uff1a <nil><\/span>\r\n}<\/span>\r\n\r\n<\/code><\/pre>\n
make\u3092\u4f7f\u7528\u3057\u305f\u521d\u671f\u5316<\/h2>\n
make\u306b\u3088\u308b\u30b9\u30e9\u30a4\u30b9\u306e\u521d\u671f\u5316<\/h3>\n
package<\/span> main<\/span>\r\n\r\nimport<\/span> \"fmt\"<\/span>\r\n\r\nfunc<\/span> main<\/span>()<\/span> {<\/span>\r\n\t\/\/ make\u306b\u3088\u308b\u30b9\u30e9\u30a4\u30b9\u306e\u521d\u671f\u5316<\/span>\r\n\tslice<\/span> :=<\/span> make<\/span>([]<\/span>int<\/span>,<\/span> 0<\/span>)<\/span>\r\n \r\n\tif<\/span> slice<\/span> ==<\/span> nil<\/span> {<\/span>\r\n\t\tfmt<\/span>.<\/span>Println<\/span>(<\/span>\"make\u306b\u3088\u3063\u3066\u521d\u671f\u5316\u3057\u305f\u30b9\u30e9\u30a4\u30b9\u306fnil\u3067\u3059\"<\/span>)<\/span>\r\n\t}<\/span> else<\/span> {<\/span>\r\n\t\tfmt<\/span>.<\/span>Println<\/span>(<\/span>\"make\u306b\u3088\u3063\u3066\u521d\u671f\u5316\u3057\u305f\u30b9\u30e9\u30a4\u30b9\u306fnil\u3067\u306f\u3042\u308a\u307e\u305b\u3093\"<\/span>)<\/span>\r\n\t}<\/span>\r\n     \/\/ \u7d50\u679c\uff1a make\u306b\u3088\u3063\u3066\u521d\u671f\u5316\u3057\u305f\u30b9\u30e9\u30a4\u30b9\u306fnil\u3067\u306f\u3042\u308a\u307e\u305b\u3093<\/span>\r\n\r\n     fmt<\/span>.<\/span>Println<\/span>(<\/span>slice<\/span>)<\/span>\r\n     \/\/ \u7d50\u679c: []<\/span>\r\n}<\/span>\r\n\r\n<\/code><\/pre>\n
make\u306b\u3088\u308b\u30de\u30c3\u30d7\u306e\u521d\u671f\u5316<\/h3>\n
package<\/span> main<\/span>\r\n\r\nimport<\/span> \"fmt\"<\/span>\r\n\r\nfunc<\/span> main<\/span>()<\/span> {<\/span>\r\n\t\/\/ make\u306b\u3088\u308b\u30de\u30c3\u30d7\u306e\u521d\u671f\u5316<\/span>\r\n\tm<\/span> :=<\/span> make<\/span>(<\/span>map<\/span>[<\/span>string<\/span>]<\/span>int<\/span>)<\/span>\r\n \r\n\tif<\/span> m<\/span> ==<\/span> nil<\/span> {<\/span>\r\n\t\tfmt<\/span>.<\/span>Println<\/span>(<\/span>\"make\u306b\u3088\u3063\u3066\u521d\u671f\u5316\u3057\u305f\u30de\u30c3\u30d7\u306fnil\u3067\u3059\"<\/span>)<\/span>\r\n\t}<\/span> else<\/span> {<\/span>\r\n\t\tfmt<\/span>.<\/span>Println<\/span>(<\/span>\"make\u306b\u3088\u3063\u3066\u521d\u671f\u5316\u3057\u305f\u30de\u30c3\u30d7\u306fnil\u3067\u306f\u3042\u308a\u307e\u305b\u3093\"<\/span>)<\/span>\r\n\t}<\/span>\r\n     \/\/ \u7d50\u679c\uff1a make\u306b\u3088\u3063\u3066\u521d\u671f\u5316\u3057\u305f\u30de\u30c3\u30d7\u306fnil\u3067\u306f\u3042\u308a\u307e\u305b\u3093<\/span>\r\n\r\n     fmt<\/span>.<\/span>Println<\/span>(<\/span>m<\/span>)<\/span>\r\n     \/\/ \u7d50\u679c\uff1a map[]<\/span>\r\n}<\/span>\r\n\r\n<\/code><\/pre>\n
\u307e\u3068\u3081<\/h2>\n
\n
\u53c2\u7167\u578b\u306e\u5909\u6570\u306f\u3001\u30c7\u30d5\u30a9\u30eb\u30c8\u3067nil\u3068\u3057\u3066\u521d\u671f\u5316
\n\u53c2\u7167\u578b\u304c\u5185\u90e8\u7684\u306b\u306f\u30dd\u30a4\u30f3\u30bf\u3092\u6301\u3061\u3001nil\u306f\u30dd\u30a4\u30f3\u30bf\u304c\u7121\u52b9\u3067\u3042\u308b\u3053\u3068\u3092\u793a\u3059<\/p>\n<\/div>\n
\n
make\u95a2\u6570\u3092\u4f7f\u7528\u3059\u308b\u3068\u521d\u671f\u5316\u306fnil\u3067\u306f\u306a\u304f\u7a7a\u306e\u30b9\u30e9\u30a4\u30b9\u307e\u305f\u306f\u7a7a\u306e\u30de\u30c3\u30d7\u3068\u306a\u308b<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"
Golang\u3067\u306f\u3001 \u30b9\u30e9\u30a4\u30b9\uff08slice\uff09\u3001\u30de\u30c3\u30d7\uff08map\uff09\u3001\u30c1\u30e3\u30cd\u30eb\uff08channel\uff09\u306a\u3069\u306e\u53c2\u7167\u578b\u306e\u5909\u6570\u306f\u3001 […]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-44685","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"\n- Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/44685-2\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:description\" content=\"Golang\u3067\u306f\u3001 \u30b9\u30e9\u30a4\u30b9\uff08slice\uff09\u3001\u30de\u30c3\u30d7\uff08map\uff09\u3001\u30c1\u30e3\u30cd\u30eb\uff08channel\uff09\u306a\u3069\u306e\u53c2\u7167\u578b\u306e\u5909\u6570\u306f\u3001 […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/44685-2\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:published_time\" content=\"2024-02-14T09:49:35+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-04-29T11:05:03+00:00\" \/>\n<meta name=\"author\" content=\"\u97f5, \u79d1\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u97f5, \u79d1\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/44685-2\/\",\"url\":\"https:\/\/www.silicloud.com\/zh\/blog\/44685-2\/\",\"name\":\"- Blog - Silicon Cloud\",\"isPartOf\":{\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#website\"},\"datePublished\":\"2024-02-14T09:49:35+00:00\",\"dateModified\":\"2024-04-29T11:05:03+00:00\",\"author\":{\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/6530331a63adef3b3443a1fab53a0e6e\"},\"inLanguage\":\"zh-Hans\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.silicloud.com\/zh\/blog\/44685-2\/\"]}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#website\",\"url\":\"https:\/\/www.silicloud.com\/zh\/blog\/\",\"name\":\"Blog - 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