<html>
<body>
<div id = "app"></div>
<script>
var d =document.getElementById("app")
var dic = []
for(var i=0;i<3;i++){
var getid = document.createElement("div")
getid.id = "div" + i
d.appendChild(getid)
dic.push( { turn : i , id : getid } )
}
dic[0].id.innerHTML = "hi"
</script>
</body>
</html>
这个能正常运行
<html>
<body>
<div id = "app"></div>
<script>
var d =document.getElementById("app")
var dic = []
for(var i=0;i<3;i++){
var getid = "<div id = 'div" + i + "'></div>"
d.innerHTML += getid
dic.push( { turn : i , id : getid } )
}
dic[0].id.innerHTML = "hi"
</script>
</body>
</html>
这个却不行
上边的用 createElement 创建了一个对象，下边你给的空字符串，没有创建对象
与&，或|，异或 ^
var num1 = 5;
//将一个十进制转换成指定进制
console.log(num1.toString(2));
var num2 = 6;
console.log(num2.toString(2));
console.log(num1&num2);
console.log(num1|num2);
console.log(num1^num2);