js 将字符串格式化yyyy-mm-dd hh:mm:ss

要将字符串格式化为"yyyy-MM-dd HH:mm:ss"的格式，可以使用JavaScript中的Date对象和相关方法来实现。下面是一个示例代码：

var dateString = "2015-07-16 17:07:21";
var dateParts = dateString.split(" ");
var date = dateParts<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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