NSString stringWithFormat添加百分比 [英] NSString stringWithFormat adding a percent

问题描述

如何在stringWithFormat函数中添加百分比？例如，我想要以下内容：

How can I add a percent to my stringWithFormat function? For example, I'd like to have the following:

float someFloat = 40.233f;
NSString *str = [NSString stringWithFormat:@"%.02f%",someFloat];

这应该导致字符串为：

40.23%

但事实并非如此。我怎样才能实现这个目标？

But it is not the case. How can I achieve this?

推荐答案

％成为开始printf的角色样式格式，它只需要加倍：

% being the character beginning printf-style formats, it simply needs to be doubled:

float someFloat = 40.233f;
NSString *str = [NSString stringWithFormat:@"%.02f%%",someFloat];

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