代码:
<!DOCTYPE html
>
<html>
<head>
<meta charset
="utf-8">
<title>有红、白、黑三种球若干个
,求红白黑球的数量
</title
>
</head
>
<body>
<script>
for (var white
= 0; white
<= 25; white
++) {
var red
= 25 - white
;
var black
= 31 - white
;
if(red
+ black
== 28){
document
.write("红球有:" + red
+ "个" + "<br/>");
document
.write("白球有:" + white
+ "个" + "<br/>");
document
.write("黑球有:" + black
+ "个" + "<br/>");
}
}
</script
>
</body
>
</html
>
运行结果:
转载请注明原文地址: https://lol.8miu.com/read-22568.html