代码如下: var arr1 = [ "a", "b", "c", "d", "e" ]; $.each(arr1, function(){ alert(this); }); 输出:a b c d e 代码如下: var arr2 = [[1, 2, 3], [4, 5, 6], [7, 8, 9]] $.each(arr2, function(i, item){ alert(item[0]); }); 输出:1 4 7 代码如下: var obj = { one:1, two:2, three:3, four:4, five:5 }; $.each(obj, function(key, val) { alert(obj[key]); }); 输出...
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