js:打印99乘法表

document.write('
99乘法表
');
var split="    ";
document.write(split);
for(var head=1;head<=9;head++){
    document.write(head+split+split+split);
}
document.write("
");
for(var i=1;i<=9;i++){
    for (var j=0;j<=i;j++){
        if (j===0){
            document.write(i+split);
        }else {
        document.write(i + "*" + j +"="+(i*j)+split);
        }
    }
    document.write("
");
}

代码量不多，仅供娱乐。~