jsは99乗算表を書きます

316 ワード

方法1:

for(var i=1;i<=9;i++){
 document.write("
");
for(var j=1;j<=i;j++){
     sum = i*j;
    document.write(i,"*",j,"=",sum,"  ");
}
}

方法二:

for(var i =1;i<10;i++){
let a = '';
 for(var j=1;j