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function start(){ document.getElementById("Button1").disabled = true; document.getElementById("Button1").value = 10; window.setTimeout("tick()",1000);}function tick(){ var time = new Number(document.getElementById("Button1").value); if(time>0) { document.getElementById("Button1").value = time-1; window.setTimeout("tick()",1000); } else { document.getElementById("Button1").disabled = false; document.getElementById("Button1").value = "保存"; }} start();
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