实现任意两个数字，前面数字与后面数字组合
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Number-Combination</title>
</head>
<body>
<input id="bnum" type="number" placeholder="请输入开始数字" />
<input id="enum" type="number" placeholder="请输入结束数字" />
<input type="button" id='calc' value="排列组合" />
<script>
var btn = document.getElementById('calc')
btn.onclick = function () {
var beginnum = document.getElementById('bnum').value.toString();
var endnum = document.getElementById('enum').value.toString();
comb(beginnum, endnum)
}
function comb(a, b) {
this.a = a.split('');
this.b = b.split('');
var len = this.a.lenght * this.b.lenght;
var temp = new Array();
for (var o = 0; o < this.a.length; o++) {
for (p = 0; p < this.b.length; p++) {
console.log(this.a[o] + this.b[p])
let newDiv = document.createElement("div");
let newContent = document.createTextNode(this.a[o] + this.b[p]);
newDiv.appendChild(newContent);
let currentDiv = document.getElementById("div1");
document.body.insertBefore(newDiv, currentDiv);
}
}
}
</script>
</body>
</html>
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