我怎么能写从用C运行z和A到Z循环单？ [英] How can I write a single for loop running from a to z and A to Z in C?

问题描述

我想这两个for循环为单个环路相结合。我该怎么做？

I want to combine both the for loops into single for loop. How can i do that?

我想通过一个循环，Z和A到Z，像这样：

I want to loop through a to z, and A to Z, like so:

char ch;
for (ch = 'A' ; ch <= 'Z' ; ch++ )
{ 
}
for (ch = 'a' ; ch <= 'z' ; ch++ )
{
}

，但使用单个环路

but using a single loop.

推荐答案

我不亲自如的这一解决方案，但是：

I don't personally like this solution, but:

char * letters = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
for (char * ptr = letters; *ptr != 0; ++ptr) {
    char ch = *ptr;
    ...
} 

这篇关于我怎么能写从用C运行z和A到Z循环单？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！