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返回值:Object
jQuery.each(object, [callback])
概述
通用遍历方法，可用于遍历对象和数组。
不同于例遍 jQuery 对象的 $().each() 方法，此方法可用于例遍任何对象。回调函数拥有两个参数：第一个为对象的成员或数组的索引，第二个为对应变量或内容。如果需要退出 each 循环可使回调函数返回 false，其它返回值将被忽略。
参数
object,[callback]Object,FunctionV1.0
object:需要例遍的对象或数组。
callback:每个成员/元素执行的回调函数。
示例
描述:
例遍数组，同时使用元素索引和内容。
jQuery 代码:
$.each( [0,1,2], function(i, n){
alert( "Item #" + i + ": " + n );
});描述:
例遍对象，同时使用成员名称和变量内容。
jQuery 代码:
$.each( { name: "John", lang: "JS" }, function(i, n){
alert( "Name: " + i + ", Value: " + n );
});