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<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>圣诞树</title>
<style>
body {
margin: 20px;
color:
line-height: 30px;
font-size: 50px;
}
</style>
</head>
<body>
<script>
var h = 15
for(i = 1; i <= h - 1; i++) {
for(j = h - 1; j >= i; j--) {
document.write(' ')
}
for(n = 1; n <= 2 * i - 1; n++) {
document.write('*')
}
document.write('<br>')
}
</script>
</body>
</html>
|
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