{"id":66,"date":"2011-12-10T17:37:25","date_gmt":"2011-12-10T09:37:25","guid":{"rendered":"https:\/\/blog.indeex.club\/?p=66"},"modified":"2020-06-20T22:42:20","modified_gmt":"2020-06-20T14:42:20","slug":"javascript%e7%9a%84%e5%af%b9%e8%b1%a1-object%ef%bc%88%e4%ba%8c%ef%bc%89","status":"publish","type":"post","link":"https:\/\/blog.indeex.club\/index.php\/2011\/12\/10\/javascript%e7%9a%84%e5%af%b9%e8%b1%a1-object%ef%bc%88%e4%ba%8c%ef%bc%89\/","title":{"rendered":"Javascript\u7684\u5bf9\u8c61 object\uff08\u4e8c\uff09"},"content":{"rendered":"

\u5bf9\u8c61\u7684\u521b\u5efa<\/h4>\n

\u5df2\u7ecf\u8bf4\u4e86\u8bb8\u591a\u4e86\u5bf9\u8c61\u7684\u8bdd\u9898\u4e86\uff0c\u4f46\u6709\u4e00\u4e2a\u5f88\u57fa\u672c\u7684\u95ee\u9898\u6211\u4eec\u5fd8\u4e86\u8ba8\u8bba\uff0c\u90a3\u5c31\u662f\uff1a\u600e\u6837\u5efa\u7acb\u5bf9\u8c61\uff1f<\/p>\n

\u5728\u524d\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u5df2\u7ecf\u6d89\u53ca\u5230\u4e86\u5bf9\u8c61\u7684\u5efa\u7acb\u4e86\u3002\u6211\u4eec\u4f7f\u7528\u4e86\u4e00\u79cd\u88ab\u79f0\u4e3aJavaScript Object Notation(\u7f29\u5199JSON)\u7684\u5f62\u5f0f\uff0c\u7ffb\u8bd1\u4e3a\u4e2d\u6587\u5c31\u662f\u201cJavaScript\u5bf9\u8c61\u8868\u793a\u6cd5\u201d\u3002<\/p>\n

JSON\u4e3a\u521b\u5efa\u5bf9\u8c61\u63d0\u4f9b\u4e86\u975e\u5e38\u7b80\u5355\u7684\u65b9\u6cd5\u3002\u4f8b\u5982\uff0c<\/p>\n

\u521b\u5efa\u4e00\u4e2a\u6ca1\u6709\u4efb\u4f55\u5c5e\u6027\u7684\u5bf9\u8c61\uff1a<\/p>\n

var o = {}; \n<\/code><\/pre>\n
\u521b\u5efa\u4e00\u4e2a\u5bf9\u8c61\u5e76\u8bbe\u7f6e\u5c5e\u6027\u53ca\u521d\u59cb\u503c\uff1a<\/p>\n
var person = {name: \"Angel\", age: 18, married: false}; \n<\/code><\/pre>\n
\u521b\u5efa\u4e00\u4e2a\u5bf9\u8c61\u5e76\u8bbe\u7f6e\u5c5e\u6027\u548c\u65b9\u6cd5\uff1a<\/p>\n
var speaker = {text: \"Hello World\", say: function(){alert(this.text)}}; \n<\/code><\/pre>\n
\u521b\u5efa\u4e00\u4e2a\u66f4\u590d\u6742\u7684\u5bf9\u8c61\uff0c\u5d4c\u5957\u5176\u4ed6\u5bf9\u8c61\u548c\u5bf9\u8c61\u6570\u7ec4\u7b49\uff1a<\/p>\n
var company = \n\n{ \n\nname: \"Microsoft\", \n\nproduct: \"softwares\", \n\nchairman: {name: \"Bill Gates\", age: 53, Married: true}, \n\nemployees: [{name: \"Angel\", age: 26, Married: false}, {name: \"Hanson\", age: 32, Marred: true}], \n\nreadme: function() {document.write(this.name + \" product \" + this.product);} \n\n}; \n<\/code><\/pre>\n
JSON\u7684\u5f62\u5f0f\u5c31\u662f\u7528\u5927\u62ec\u201c{}\u201d\u53f7\u5305\u62ec\u8d77\u6765\u7684\u9879\u76ee\u5217\u8868\uff0c\u6bcf\u4e00\u4e2a\u9879\u76ee\u95f4\u5e76\u7528\u9017\u53f7\u201c,\u201d\u5206\u9694\uff0c\u800c\u9879\u76ee\u5c31\u662f\u7528\u5192\u53f7\u201c:\u201d\u5206\u9694\u7684\u5c5e\u6027\u540d\u548c\u5c5e\u6027\u503c\u3002\u8fd9\u662f\u5178\u578b\u7684\u5b57\u5178\u8868\u793a\u5f62\u5f0f\uff0c\u4e5f\u518d\u6b21\u8868\u660e\u4e86 JavaScript\u91cc\u7684\u5bf9\u8c61\u5c31\u662f\u5b57\u5178\u7ed3\u6784\u3002\u4e0d\u7ba1\u591a\u4e48\u590d\u6742\u7684\u5bf9\u8c61\uff0c\u90fd\u53ef\u4ee5\u88ab\u4e00\u53e5JSON\u4ee3\u7801\u6765\u521b\u5efa\u5e76\u8d4b\u503c\u3002<\/p>\n
\u5176\u5b9e\uff0cJSON\u5c31\u662fJavaScript\u5bf9\u8c61\u6700\u597d\u7684\u5e8f\u5217\u5316\u5f62\u5f0f\uff0c\u5b83\u6bd4XML\u66f4\u7b80\u6d01\u4e5f\u66f4\u7701\u7a7a\u95f4\u3002\u5bf9\u8c61\u53ef\u4ee5\u4f5c\u4e3a\u4e00\u4e2aJSON\u5f62\u5f0f\u7684\u5b57\u7b26\u4e32\uff0c\u5728\u7f51\u7edc\u95f4\u81ea\u7531\u4f20\u9012\u548c\u4ea4\u6362\u4fe1\u606f\u3002\u800c\u5f53\u9700\u8981\u5c06\u8fd9\u4e2aJSON\u5b57\u7b26\u4e32\u53d8\u6210\u4e00\u4e2aJavaScript\u5bf9\u8c61\u65f6\uff0c\u53ea\u9700\u8981\u4f7f\u7528eval\u51fd\u6570\u8fd9\u4e2a\u5f3a\u5927\u7684\u6570\u7801\u8f6c\u6362\u5f15\u64ce\uff0c\u5c31\u7acb\u5373\u80fd\u5f97\u5230\u4e00\u4e2aJavaScript\u5185\u5b58\u5bf9\u8c61\u3002\u6b63\u662f\u7531\u4e8eJSON\u7684\u8fd9\u79cd\u7b80\u5355\u6734\u7d20\u7684\u5929\u751f\u4e3d\u8d28\uff0c\u624d\u4f7f\u5f97\u5979\u5728AJAX\u821e\u53f0\u4e0a\u6210\u4e3a\u7480\u74a8\u593a\u76ee\u7684\u660e\u661f\u3002<\/p>\n
JavaScript\u5c31\u662f\u8fd9\u6837\uff0c\u628a\u9762\u5411\u5bf9\u8c61\u90a3\u4e9b\u770b\u4f3c\u590d\u6742\u7684\u4e1c\u897f\uff0c\u7528\u53ca\u5176\u7b80\u6d01\u7684\u5f62\u5f0f\u8868\u8fbe\u51fa\u6765\u3002\u5378\u4e0b\u5bf9\u8c61\u6d6e\u534e\u7684\u6d53\u5986\uff0c\u8fd8\u5bf9\u8c61\u4e00\u4e2a\u7709\u76ee\u6e05\u6670\uff01<\/p>\n
\u6784\u9020\u5bf9\u8c61<\/h4>\n
\u597d\u4e86\uff0c\u63a5\u4e0b\u6211\u4eec\u6765\u8ba8\u8bba\u4e00\u4e0b\u5bf9\u8c61\u7684\u53e6\u4e00\u79cd\u521b\u5efa\u65b9\u6cd5\u3002<\/p>\n
\u9664JSON\u5916\uff0c\u5728JavaScript\u4e2d\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528new\u64cd\u4f5c\u7b26\u7ed3\u5408\u4e00\u4e2a\u51fd\u6570\u7684\u5f62\u5f0f\u6765\u521b\u5efa\u5bf9\u8c61\u3002\u4f8b\u5982\uff1a<\/p>\n
function MyFunc() {};         \/\/\u5b9a\u4e49\u4e00\u4e2a\u7a7a\u51fd\u6570 \n\nvar anObj = new MyFunc();  \/\/\u4f7f\u7528new\u64cd\u4f5c\u7b26\uff0c\u501f\u52a9MyFun\u51fd\u6570\uff0c\u5c31\u521b\u5efa\u4e86\u4e00\u4e2a\u5bf9\u8c61 \n<\/code><\/pre>\n
JavaScript\u7684\u8fd9\u79cd\u521b\u5efa\u5bf9\u8c61\u7684\u65b9\u5f0f\u53ef\u771f\u6709\u610f\u601d\uff0c\u5982\u4f55\u53bb\u7406\u89e3\u8fd9\u79cd\u5199\u6cd5\u5462\uff1f<\/p>\n
\u5176\u5b9e\uff0c\u53ef\u4ee5\u628a\u4e0a\u9762\u7684\u4ee3\u7801\u6539\u5199\u6210\u8fd9\u79cd\u7b49\u4ef7\u5f62\u5f0f\uff1a<\/p>\n
function MyFunc(){}; \n\nvar anObj = {};     \/\/\u521b\u5efa\u4e00\u4e2a\u5bf9\u8c61 \n\nMyFunc.call(anObj); \/\/\u5c06anObj\u5bf9\u8c61\u4f5c\u4e3athis\u6307\u9488\u8c03\u7528MyFunc\u51fd\u6570 \n<\/code><\/pre>\n
\u6211\u4eec\u5c31\u53ef\u4ee5\u8fd9\u6837\u7406\u89e3\uff0cJavaScript\u5148\u7528new\u64cd\u4f5c\u7b26\u521b\u5efa\u4e86\u4e00\u4e2a\u5bf9\u8c61\uff0c\u7d27\u63a5\u7740\u5c31\u5c06\u8fd9\u4e2a\u5bf9\u8c61\u4f5c\u4e3athis\u53c2\u6570\u8c03\u7528\u4e86\u540e\u9762\u7684\u51fd\u6570\u3002\u5176\u5b9e\uff0cJavaScript\u5185\u90e8\u5c31\u662f\u8fd9\u4e48\u505a\u7684\uff0c\u800c\u4e14\u4efb\u4f55\u51fd\u6570\u90fd\u53ef\u4ee5\u88ab\u8fd9\u6837\u8c03\u7528\uff01\u4f46\u4ece \u201canObj = new MyFunc()\u201d \u8fd9\u79cd\u5f62\u5f0f\uff0c\u6211\u4eec\u53c8\u770b\u5230\u4e00\u4e2a\u719f\u6089\u7684\u8eab\u5f71\uff0cC++\u548cC#\u4e0d\u5c31\u662f\u8fd9\u6837\u521b\u5efa\u5bf9\u8c61\u7684\u5417\uff1f\u539f\u6765\uff0c\u6761\u6761\u5927\u8def\u901a\u7075\u5c71\uff0c\u6b8a\u9014\u540c\u5f52\u554a\uff01<\/p>\n
\u541b\u770b\u5230\u6b64\u5904\u4e5f\u8bb8\u4f1a\u60f3\uff0c\u6211\u4eec\u4e3a\u4ec0\u4e48\u4e0d\u53ef\u4ee5\u628a\u8fd9\u4e2aMyFunc\u5f53\u4f5c\u6784\u9020\u51fd\u6570\u5462\uff1f\u606d\u559c\u4f60\uff0c\u7b54\u5bf9\u4e86\uff01JavaScript\u4e5f\u662f\u8fd9\u4e48\u60f3\u7684\uff01\u8bf7\u770b\u4e0b\u9762\u7684\u4ee3\u7801\uff1a<\/p>\n
“`
\nfunction Person(name) \/\/\u5e26\u53c2\u6570\u7684\u6784\u9020\u51fd\u6570
\n    {
\n        this.name = name; \/\/\u5c06\u53c2\u6570\u503c\u8d4b\u7ed9\u7ed9this\u5bf9\u8c61\u7684\u5c5e\u6027
\n        this.SayHello = function() {
\n            alert("Hello, I'm " + this.name);
\n        }; \/\/\u7ed9this\u5bf9\u8c61\u5b9a\u4e49\u4e00\u4e2aSayHello\u65b9\u6cd5\u3002
\n    };<\/p>\n
<pre><code>function Employee(name, salary) \/\/\u5b50\u6784\u9020\u51fd\u6570
\n{
\n    Person.call(this, name); \/\/\u5c06this\u4f20\u7ed9\u7236\u6784\u9020\u51fd\u6570
\n    this.salary = salary; \/\/\u8bbe\u7f6e\u4e00\u4e2athis\u7684salary\u5c5e\u6027
\n    this.ShowMeTheMoney = function() {
\n        alert(this.name + " $" + this.salary);
\n    }; \/\/\u6dfb\u52a0ShowMeTheMoney\u65b9\u6cd5\u3002
\n};<\/p>\n
var BillGates = new Person("Bill Gates"); \/\/\u7528Person\u6784\u9020\u51fd\u6570\u521b\u5efaBillGates\u5bf9\u8c61
\nvar SteveJobs = new Employee("Steve Jobs", 1234); \/\/\u7528Empolyee\u6784\u9020\u51fd\u6570\u521b\u5efaSteveJobs\u5bf9\u8c61  <\/p>\n
BillGates.SayHello(); \/\/\u663e\u793a\uff1aI'm Bill Gates
\nSteveJobs.SayHello(); \/\/\u663e\u793a\uff1aI'm Steve Jobs
\nSteveJobs.ShowMeTheMoney(); \/\/\u663e\u793a\uff1aSteve Jobs $1234  <\/p>\n
alert(BillGates.constructor == Person); \/\/\u663e\u793a\uff1atrue
\nalert(SteveJobs.constructor == Employee); \/\/\u663e\u793a\uff1atrue  <\/p>\n
alert(BillGates.SayHello == SteveJobs.SayHello); \/\/\u663e\u793a\uff1afalse
\n“`
\n<\/code><\/p>\n
\u8fd9\u6bb5\u4ee3\u7801\u8868\u660e\uff0c\u51fd\u6570\u4e0d\u4f46\u53ef\u4ee5\u5f53\u4f5c\u6784\u9020\u51fd\u6570\uff0c\u800c\u4e14\u8fd8\u53ef\u4ee5\u5e26\u53c2\u6570\uff0c\u8fd8\u53ef\u4ee5\u4e3a\u5bf9\u8c61\u6dfb\u52a0\u6210\u5458\u548c\u65b9\u6cd5\u3002\u5176\u4e2d\u7684\u7b2c9\u884c\uff0cEmployee\u6784\u9020\u51fd\u6570\u53c8\u5c06\u81ea\u5df1\u63a5\u6536\u7684this\u4f5c\u4e3a\u53c2\u6570\u8c03\u7528Person\u6784\u9020\u51fd\u6570\uff0c\u8fd9\u5c31\u662f\u76f8\u5f53\u4e8e\u8c03\u7528\u57fa\u7c7b\u7684\u6784\u9020\u51fd\u6570\u3002\u7b2c21\u300122\u884c\u8fd8\u8868\u660e\u8fd9\u6837\u4e00\u4e2a\u610f\u601d\uff1aBillGates\u662f\u7531Person\u6784\u9020\u7684\uff0c\u800cSteveJobs\u662f\u7531Employee\u6784\u9020\u7684\u3002\u5bf9\u8c61\u5185\u7f6e\u7684constructor\u5c5e\u6027\u8fd8\u6307\u660e\u4e86\u6784\u9020\u5bf9\u8c61\u6240\u7528\u7684\u5177\u4f53\u51fd\u6570\uff01<\/p>\n
\u5176\u5b9e\uff0c\u5982\u679c\u4f60\u613f\u610f\u628a\u51fd\u6570\u5f53\u4f5c\u201c\u7c7b\u201d\u7684\u8bdd\uff0c\u5979\u5c31\u662f\u201c\u7c7b\u201d\uff0c\u56e0\u4e3a\u5979\u672c\u6765\u5c31\u6709\u201c\u7c7b\u201d\u7684\u90a3\u4e9b\u7279\u5f81\u3002\u96be\u9053\u4e0d\u662f\u5417\uff1f\u5979\u751f\u51fa\u7684\u513f\u5b50\u5404\u4e2a\u90fd\u6709\u76f8\u540c\u7684\u7279\u5f81\uff0c\u800c\u4e14\u6784\u9020\u51fd\u6570\u4e5f\u4e0e\u7c7b\u540c\u540d\u561b\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5bf9\u8c61\u7684\u521b\u5efa \u5df2\u7ecf\u8bf4\u4e86\u8bb8\u591a\u4e86\u5bf9\u8c61\u7684\u8bdd\u9898\u4e86\uff0c\u4f46\u6709\u4e00\u4e2a\u5f88\u57fa\u672c\u7684\u95ee\u9898\u6211\u4eec\u5fd8\u4e86\u8ba8\u8bba\uff0c\u90a3\u5c31\u662f\uff1a\u600e\u6837\u5efa\u7acb\u5bf9\u8c61\uff1f \u5728Read More<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[3],"tags":[4],"_links":{"self":[{"href":"https:\/\/blog.indeex.club\/index.php\/wp-json\/wp\/v2\/posts\/66"}],"collection":[{"href":"https:\/\/blog.indeex.club\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.indeex.club\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.indeex.club\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.indeex.club\/index.php\/wp-json\/wp\/v2\/comments?post=66"}],"version-history":[{"count":1,"href":"https:\/\/blog.indeex.club\/index.php\/wp-json\/wp\/v2\/posts\/66\/revisions"}],"predecessor-version":[{"id":71,"href":"https:\/\/blog.indeex.club\/index.php\/wp-json\/wp\/v2\/posts\/66\/revisions\/71"}],"wp:attachment":[{"href":"https:\/\/blog.indeex.club\/index.php\/wp-json\/wp\/v2\/media?parent=66"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.indeex.club\/index.php\/wp-json\/wp\/v2\/categories?post=66"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.indeex.club\/index.php\/wp-json\/wp\/v2\/tags?post=66"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}