//"5=a,6=b,7=c"换成"a=5,b=6,c=7"
var str="5=a,7=c";
str=str.replace(/(\d+)=(\w)/g,"$2=$1");
console.log(str);
Instanceof
Meta charset="UTF-8">
Location:
Meta charset="UTF-8">
var btn=document.getElementById("btn");
btn.onclick=function(){
window.location.href="04键盘事件练习.html" rel="external nofollow" ;//链接的位置
}
