四舍五入数字. [英] Rounding the Number.

问题描述

我想知道c ++中是否有任何函数可以舍入一个数字?

I want to know is there any function in c++ to round a number???

推荐答案

最佳解决方案-

Let Me Google [

Best Solution--

Let Me Google[^]

大多数询问四舍五入的查询者实际上并不需要四舍五入.几乎不需要.最有可能的是，您需要在UI或控制台中四舍五入的数字表示形式.这是完全不同的事情.
如果这是您真正需要的，请不要使用舍入.

请参阅: http://www.cplusplus.com/reference/clibrary/cstdio/printf/ [ ^ ]，http://www.cplusplus.com/reference/clibrary/cstdio/sprintf/ [

Most Inquirers who asked about rounding do not actually need rounding. It''s almost never needed. Most likely, you need a rounded string presentation of the number in your UI or console. This is completely different thing.
If this is what you really need, never use rounding.

See: http://www.cplusplus.com/reference/clibrary/cstdio/printf/[^], http://www.cplusplus.com/reference/clibrary/cstdio/sprintf/[^].

—SA

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