C / C ++：printf使用逗号而不是点作为小数点分隔符 [英] C/C++: printf use commas instead of dots as decimal separator

问题描述

我需要我的程序使用逗号作为小数点分隔符来显示输出。

I need that my program shows the output using commas as decimal separator.

根据此链接：可以在Java中使用的http://www.java2s.com/Code/Java/Development-Class/Floatingpointwithcommasf.htm 像这样的东西：

According to this link: http://www.java2s.com/Code/Java/Development-Class/Floatingpointwithcommasf.htm you can use in Java something like this:

System.out.printf("Floating-point with commas: %,f\n", 1234567.123);

在C中是否存在标志或可用于类似行为的东西？

Is there a flag or something that I can use to have a similar behaviour in C?

谢谢！

推荐答案

如果需要，可以设置当前语言环境在程序开始时：

If you want, you can set current locale at the beginning of your program:

#include <stdio.h>
#include <locale.h>


int main()
{
    setlocale(LC_NUMERIC, "French_Canada.1252"); // ".OCP" if you want to use system settings
    printf("%f\n", 3.14543);
    return 0;
}

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