猜数字游戏

作者: 300d | 来源:发表于2017-07-30 16:28 被阅读0次

1~100之间猜数字游戏，猜错给出相应提示，猜对给出所用次数。
源码如下：

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>which</title>
</head>
<body>
<script type="text/javascript ">
    var getNum,inpNum,camPare,count=0;
    getNum=Math.floor((Math.random()*100)+1);
    console.log('随机数字为',getNum);
    //alert(getNum );
        function findIt() {
            inpNum = prompt("请输入1-100之间的数字");
            count++;
            camPare = (inpNum - getNum);
            if (isNaN(inpNum)) {
                alert("error,try it again");
                findIt();
            }
            else {
                if (camPare > 0) {
                    alert("it's larger,try it again");
                    findIt();
                }
               else if (camPare < 0) {
                    alert("it's smaller,try it again");
                    findIt();
                }
                else {
                    alert("right,you've tried "+count+" times");
                }
            }
            return;
        }
findIt ();
</script>
</body>
</html>