如何能让第二次点击“我同意”不显示这个0

Question

function daojishi2(){
var btn1=document.getElementById("btn1");
if(btn1.value!="【我同意0】"){
if(testTime2<1){
btn1.value="【我同意0】";
btn1.disabled=false;
}else{
btn1.disabled=true;
btn1.value="【我同意"+testTime2+"】";
testTime2--;
setTimeout("daojishi2()",1000);

}
}else if(btn1.value=="【我同意0】"){
location.href="./Test.jsp";
}
}

Answer 1

var num=0;
function daojishi2(){
var btn1=document.getElementById("btn1");
if(num<1){
btn1.value="【我同意0】";
btn1.disabled=false;
num=num+1;
}else{
btn1.disabled=true;
btn1.value="【我同意】";
}
}