JavaScript打印倒三角

1.效果

2.JavaScript代码

<script type="text/javascript"> function printTri(x) { //放进段落,段落居中，自然就居中了 document.write("<p align='center'>"); for (var i = 1; i <= x; i++) { for (var j = 1; j <= x - i + 1; j++) { document.write(" "); var icon = "\u263a"; document.write(" " + icon +" "); } document.write("<br>"); } document.write("</p>"); } printTri(10); </script>