学习日记【JavaScript】-2020/12/15

教程地址：https://www.bilibili.com/video/BV1ux411d75J?p=93

目前进度：93p/190p

<!DOCTYPE html>
<html>
    <head>
        <meta charset="utf-8">
        <title></title>
        <script>
            //求学生成绩案例
            var member = prompt('请输入班级人数');
            member = parseInt(member);
            var classresult = 0;
            var result = 0;
            for (var i=0;i<member;i++){
                result = parseInt(prompt('请输入第'+ (i+1) +'个学生的成绩'));
                classresult = classresult + result;
                classresult = parseInt(classresult);
            }
            var classave = classresult/member;
            alert('班级总分数为'+classresult+'分'+"\n"+'班级平均分为'+classave+'分');
            
            //九九乘法表
            var str = '';
            for(var i = 1; i <= 9;i++){//外层控制行数
                for(var j = 1;j <= i;j++){//里层控制每一行的个数
                    str += j + '*' + i + '=' + i * j + '\t';
                }
                str += '\n';
            }
            console.log(str);
            
            var sum = 0;
            var n = 1;
            while (n <= 100){
                sum = sum + n;
                n++;
            }
            console.log(sum);
            
            var m = 1;
            do {
                console.log('这个人今年'+m+'岁了');
                m++;
            }while(m <= 100);
            
        </script>
    </head>
    <body>
    </body>
</html>

 

posted @ 2020-12-15 17:06  Shimamura。  Views(88)  Comments(0)    收藏  举报