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<input type="button" class="inputbutton" id="getcode" value="获取验证码" onclick="send()">
var code = $("#getcode"); code.attr("disabled","disabled"); setTimeout(function(){ code.css("opacity","0.8"); },1000) var time = 60; var set=setInterval(function(){ code.val("("+--time+")秒后重新获取"); }, 1000); setTimeout(function(){ code.attr("disabled",false).val("重新获取验证码"); clearInterval(set); }, 60000);