题解 | #直角三角形#
直角三角形
https://www.nowcoder.com/practice/7e8a7d83569d49aaa9bc4bb43a9d2d6e
<script>
var triangle = document.querySelector('.triangle');
let str
for(let i=1;i<=3;i++){
for(let j=0;j<i;j++){
str+='*'
}
str+='<br/>'
}
triangle.innerHTML= str
</script>
