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var t1 = null; function btnSave() { if (t1 == null) { t1 = new Date().getTime(); } else { var t2 = new Date().getTime(); if (t2 - t1 < 500) { t1 = t2; return; } else { t1 = t2; } } //写自动代码 }
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原文地址:http://www.cnblogs.com/caiyun/p/5555652.html