打印0领先在C语言中？ [英] Printing leading 0's in C?

问题描述

我试图找到打印0领先的，如01001为一个zip code的好办法。而数字将被存储为1001，什么是做一个好办法？

我想用这两种情况下语句/要是再找出多少多少个数字是，然后将其与额外的0转换为字符数组用于打印的，但我不禁想到有可能是一个办法做到这与被躲避我的printf格式语法。

解决方案

 的printf（％05D，邮编code）;
 

I'm trying to find a good way to print leading 0's, such as 01001 for a zipcode. While the number would be stored as 1001, what is a good way to do it?

I thought of using either case statements/if then to figure out how many digits the number is and then convert it to an char array with extra 0's for printing but I can't help but think there may be a way to do this with the printf format syntax that is eluding me.

解决方案

printf("%05d", zipCode);

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