<!DOCTYPE HTML><html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>confirm</title> <script type="text/javascript"> function rec(){ var mymessage=confirm("请你是女士吗?"); ; if(mymessage==true) { document.write("你是女士!"); } else { document.write("<br>"+"你是男士!"); } } </script></head><body> <input name="button" type="button" onClick="rec()" value="点击我,弹出确认对话框" /></body></html>点击确认了,document.write(),button 怎么不见了?
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