{"id":30219,"date":"2024-11-25T14:43:21","date_gmt":"2024-11-25T06:43:21","guid":{"rendered":"https:\/\/fwq.ai\/blog\/30219\/"},"modified":"2024-11-25T14:43:21","modified_gmt":"2024-11-25T06:43:21","slug":"%e5%b0%8f%e7%a8%8b%e5%ba%8f%e4%b9%8b%e6%a8%a1%e5%9d%97%e5%8c%96%e8%af%a6%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/30219\/","title":{"rendered":"\u5c0f\u7a0b\u5e8f\u4e4b\u6a21\u5757\u5316\u8be6\u89e3"},"content":{"rendered":"

\u6587\u4ef6\u4f5c\u7528\u57df<\/strong><\/p>\n

\u5728javascript\u6587\u4ef6\u4e2d\u58f0\u660e\u7684\u53d8\u91cf\u548c\u51fd\u6570\u53ea\u5728\u8be5\u6587\u4ef6\u4e2d\u6709\u6548\uff1b\u4e0d\u540c\u7684\u6587\u4ef6\u4e2d\u53ef\u4ee5\u58f0\u660e\u76f8\u540c\u540d\u5b57\u7684\u53d8\u91cf\u548c\u51fd\u6570\uff0c\u4e0d\u4f1a\u4e92\u76f8\u5f71\u54cd\u3002<\/p>\n

\u901a\u8fc7\u5168\u5c40\u51fd\u6570getApp()\u53ef\u4ee5\u83b7\u53d6\u5168\u5c40\u7684\u5e94\u7528\u5b9e\u4f8b\uff0c\u5982\u679c\u9700\u8981\u5168\u5c40\u7684\u6570\u636e\u53ef\u4ee5\u5728App()\u4e2d\u8bbe\u7f6e\uff0c\u5982\uff1a<\/p>\n

\/\/ app.jsApp({\r\n  globalData: 1})<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\/\/ a.js\r\n\/\/ The localValue can only be used in file a.js.var localValue = 'a'\r\n\/\/ Get the app instance.\r\nvar app = getApp()\r\n\/\/ Get the global data and change it.\r\napp.globalData++<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\/\/ b.js\r\n\/\/ You can redefine localValue in file b.js, without interference with the localValue in a.js.\r\nvar localValue = 'b'\r\n\/\/ If a.js it run before b.js, now the globalData shoule be 2.\r\nconsole.log(getApp().globalData)<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
<\/strong><\/span><\/p>\n
\u6211\u4eec\u53ef\u4ee5\u5c06\u4e00\u4e9b\u516c\u5171\u7684\u4ee3\u7801\u62bd\u79bb\u6210\u4e3a\u4e00\u4e2a\u5355\u72ec\u7684js\u6587\u4ef6\uff0c\u4f5c\u4e3a\u4e00\u4e2a\u6a21\u5757\u3002\u6a21\u5757\u53ea\u6709\u901a\u8fc7module.exports\u624d\u80fd\u5bf9\u5916\u66b4\u9732\u3002<\/p>\n
\u9700\u8981\u6ce8\u610f\u7684\u662f\uff1a<\/p>\n
exports <\/strong>\u662f module.exports<\/strong> \u7684\u4e00\u4e2a\uff0c\u56e0\u6b64\u5728\u6a21\u5757\u91cc\u8fb9\u968f\u610f\u66f4\u6539 exports <\/strong>\u7684\u6307\u5411\u4f1a\u9020\u6210\u672a\u77e5\u7684\u9519\u8bef\u3002\u6240\u4ee5\u6211\u4eec\u66f4\u63a8\u8350\u5f00\u53d1\u8005\u91c7\u7528 module.exports<\/strong> \u6765\u66b4\u9732\u6a21\u5757\u63a5\u53e3\uff0c\u9664\u975e\u4f60\u5df2\u7ecf\u6e05\u6670\u77e5\u9053\u8fd9\u4e24\u8005\u7684\u5173\u7cfb\u3002<\/p>\n
\u5c0f\u7a0b\u5e8f\u76ee\u524d\u4e0d\u652f\u6301\u76f4\u63a5\u5f15\u5165 node_modules<\/strong> , \u5f00\u53d1\u8005\u9700\u8981\u4f7f\u7528\u5230 node_modules <\/strong>\u65f6\u5019\u5efa\u8bae\u62f7\u8d1d\u51fa\u76f8\u5173\u7684\u4ee3\u7801\u5230\u5c0f\u7a0b\u5e8f\u7684\u76ee\u5f55\u4e2d\u3002<\/p>\n
\/\/ common.js\r\nfunction sayHello(name) {\r\n  console.log('Hello ${name} !')\r\n}\r\nfunction sayGoodbye(name) {\r\n  console.log('Goodbye ${name} !')\r\n}\r\nmodule.exports.sayHello = sayHello\r\nexports.sayGoodbye = sayGoodbye<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u5728\u9700\u8981\u4f7f\u7528\u8fd9\u4e9b\u6a21\u5757\u7684\u6587\u4ef6\u4e2d\uff0c\u4f7f\u7528(path)\u5c06\u516c\u5171\u4ee3\u7801\u5f15\u5165\u3002<\/p>\n
var common = require('common.js')\r\nPage({\r\n  helloMINA: function() {\r\n    common.sayHello('MINA')\r\n  }  goodbyeMINA: function() {\r\n    common.sayGoodbye('MINA')\r\n  }})<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
ES6 \u8bed\u6cd5\u4ee5\u53ca  \u652f\u6301<\/strong><\/p>\n
\u5fae\u4fe1\u5c0f\u7a0b\u5e8f\u8fd0\u884c\u5728\u4e09\u7aef\uff1aiOS\u3001 \u548c \u7528\u4e8e\u7684\u5f00\u53d1\u8005\u5de5\u5177<\/p>\n
\u5728 iOS \u4e0a\uff0c\u5c0f\u7a0b\u5e8f\u7684 javascript \u4ee3\u7801\u662f\u8fd0\u884c\u5728 JavaScriptCore \u4e2d<\/p>\n
\u5728 Android \u4e0a\uff0c\u5c0f\u7a0b\u5e8f\u7684 javascript \u4ee3\u7801\u662f\u901a\u8fc7 X5 \u5185\u6838\u6765\u89e3\u6790<\/p>\n
\u5728 \u5f00\u53d1\u5de5\u5177\u4e0a\uff0c \u5c0f\u7a0b\u5e8f\u7684 javascript \u4ee3\u7801\u662f\u8fd0\u884c\u5728 nwjs\uff08chrome\u5185\u6838\uff09 \u4e2d<\/p>\n
\u867d\u7136\u5c3d\u7ba1\u4e09\u7aef\u7684\u73af\u5883\u662f\u5341\u5206\u76f8\u4f3c\u7684\uff0c\u4f46\u662f\u81f3\u5c11\u5728\u76ee\u524d\u8fd8\u662f\u6709\u4e00\u4e9b\u533a\u522b\u7684\uff0c\u8fd9\u7ed9\u5f88\u591a\u5f00\u53d1\u8005\u5e26\u6765\u5f88\u5927\u7684\u56f0\u6270\u3002<\/p>\n
\u5728 0.10.101000 \u4ee5\u53ca\u4e4b\u540e\u7248\u672c\u7684\u5f00\u53d1\u5de5\u5177\u4e2d\uff0c\u4f1a\u9ed8\u8ba4\u4f7f\u7528 babel \u5c06\u5f00\u53d1\u8005\u4ee3\u7801 ES6 \u8bed\u6cd5\u8f6c\u6362\u4e3a\u4e09\u7aef\u90fd\u80fd\u5f88\u597d\u652f\u6301\u7684 ES5 \u7684\u4ee3\u7801\uff0c\u5e2e\u52a9\u5f00\u53d1\u8005\u89e3\u51b3\u73af\u5883\u4e0d\u540c\u6240\u5e26\u6765\u7684\u5f00\u53d1\u95ee\u9898\u3002\u5f00\u53d1\u8005\u53ef\u4ee5\u5728\u9879\u76ee\u8bbe\u7f6e\u4e2d\u5173\u95ed\u8fd9\u4e2a\u529f\u80fd\u3002<\/p>\n
\u9700\u8981\u6ce8\u610f\u7684\u662f\uff1a<\/p>\n
\u8fd9\u79cd\u8f6c\u6362\u53ea\u4f1a\u5e2e\u52a9\u5f00\u53d1\u5904\u7406\u8bed\u6cd5\u4e0a\u95ee\u9898\uff0c\u65b0\u7684 ES6 \u7684 API \u4f8b\u5982 Promise \u7b49\u9700\u8981\u5f00\u53d1\u8005\u81ea\u884c\u5f15\u5165 Polyfill \u6216\u8005\u522b\u7684\u3002<\/p>\n
\u4e3a\u4e86\u63d0\u9ad8\u4ee3\u7801\u8d28\u91cf\uff0c\u5728\u5f00\u542f ES6 \u8f6c\u6362\u529f\u80fd\u7684\u60c5\u51b5\u4e0b\uff0c\u9ed8\u8ba4\u542f\u7528 javasctipt \u4e25\u683c\u6a21\u5f0f<\/p>\n
\u3010\u76f8\u5173\u63a8\u8350\u3011<\/p>\n
1. <\/p>\n
2. <\/p>\n
3. <\/p>\n
\u4ee5\u4e0a\u5c31\u662f\u5c0f\u7a0b\u5e8f\u4e4b\u6a21\u5757\u5316\u8be6\u89e3\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
\u6587\u4ef6\u4f5c\u7528\u57df \u5728javascript\u6587\u4ef6\u4e2d\u58f0\u660e\u7684\u53d8\u91cf\u548c\u51fd\u6570\u53ea\u5728\u8be5\u6587\u4ef6\u4e2d\u6709\u6548\uff1b\u4e0d\u540c\u7684\u6587\u4ef6\u4e2d\u53ef\u4ee5\u58f0\u660e\u76f8\u540c\u540d\u5b57\u7684\u53d8\u91cf\u548c\u51fd\u6570\uff0c\u4e0d\u4f1a\u4e92\u76f8\u5f71\u54cd\u3002 \u901a\u8fc7\u5168\u5c40\u51fd\u6570getApp()\u53ef\u4ee5\u83b7\u53d6\u5168\u5c40\u7684\u5e94\u7528\u5b9e\u4f8b\uff0c\u5982\u679c\u9700\u8981\u5168\u5c40\u7684\u6570\u636e\u53ef\u4ee5\u5728App()\u4e2d\u8bbe\u7f6e\uff0c\u5982\uff1a \/\/ app.jsApp({   globalData: 1}) \u767b\u5f55\u540e\u590d\u5236 \/\/ a.js \/\/ The localValue can only be used in file a.js.var localValue = ‘a’ \/\/ Get the app instance. var app = getApp() \/\/ Get the global data and change it. app.globalData++ \u767b\u5f55\u540e\u590d\u5236 \/\/ b.js \/\/ You can redefine localValue in file b.js, without interference with the localValue in a.js. var localValue = ‘b’ \/\/ If a.js it run before b.js, now the globalData shoule be 2. console.log(getApp().globalData) \u767b\u5f55\u540e\u590d\u5236 \u6211\u4eec\u53ef\u4ee5\u5c06\u4e00\u4e9b\u516c\u5171\u7684\u4ee3\u7801\u62bd\u79bb\u6210\u4e3a\u4e00\u4e2a\u5355\u72ec\u7684js\u6587\u4ef6\uff0c\u4f5c\u4e3a\u4e00\u4e2a\u6a21\u5757\u3002\u6a21\u5757\u53ea\u6709\u901a\u8fc7module.exports\u624d\u80fd\u5bf9\u5916\u66b4\u9732\u3002 \u9700\u8981\u6ce8\u610f\u7684\u662f\uff1a exports \u662f module.exports \u7684\u4e00\u4e2a\uff0c\u56e0\u6b64\u5728\u6a21\u5757\u91cc\u8fb9\u968f\u610f\u66f4\u6539 exports \u7684\u6307\u5411\u4f1a\u9020\u6210\u672a\u77e5\u7684\u9519\u8bef\u3002\u6240\u4ee5\u6211\u4eec\u66f4\u63a8\u8350\u5f00\u53d1\u8005\u91c7\u7528 module.exports \u6765\u66b4\u9732\u6a21\u5757\u63a5\u53e3\uff0c\u9664\u975e\u4f60\u5df2\u7ecf\u6e05\u6670\u77e5\u9053\u8fd9\u4e24\u8005\u7684\u5173\u7cfb\u3002 \u5c0f\u7a0b\u5e8f\u76ee\u524d\u4e0d\u652f\u6301\u76f4\u63a5\u5f15\u5165 node_modules , \u5f00\u53d1\u8005\u9700\u8981\u4f7f\u7528\u5230 node_modules \u65f6\u5019\u5efa\u8bae\u62f7\u8d1d\u51fa\u76f8\u5173\u7684\u4ee3\u7801\u5230\u5c0f\u7a0b\u5e8f\u7684\u76ee\u5f55\u4e2d\u3002 \/\/ common.js function sayHello(name) {   console.log(‘Hello ${name} !’) } function sayGoodbye(name) {   console.log(‘Goodbye ${name} !’) } module.exports.sayHello = sayHello exports.sayGoodbye = sayGoodbye \u767b\u5f55\u540e\u590d\u5236 \u5728\u9700\u8981\u4f7f\u7528\u8fd9\u4e9b\u6a21\u5757\u7684\u6587\u4ef6\u4e2d\uff0c\u4f7f\u7528(path)\u5c06\u516c\u5171\u4ee3\u7801\u5f15\u5165\u3002 var common = require(‘common.js’) Page({   helloMINA: function() {     common.sayHello(‘MINA’)   }  goodbyeMINA: function() {     common.sayGoodbye(‘MINA’)   }}) \u767b\u5f55\u540e\u590d\u5236 ES6 \u8bed\u6cd5\u4ee5\u53ca \u652f\u6301 \u5fae\u4fe1\u5c0f\u7a0b\u5e8f\u8fd0\u884c\u5728\u4e09\u7aef\uff1aiOS\u3001 \u548c \u7528\u4e8e\u7684\u5f00\u53d1\u8005\u5de5\u5177 \u5728 iOS \u4e0a\uff0c\u5c0f\u7a0b\u5e8f\u7684 javascript \u4ee3\u7801\u662f\u8fd0\u884c\u5728 JavaScriptCore […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[19],"tags":[],"class_list":["post-30219","post","type-post","status-publish","format-standard","hentry","category-19"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/30219","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=30219"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/30219\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=30219"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=30219"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=30219"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}