C中的字符比较 [英] Char Comparison in C
本文介绍了C中的字符比较的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我正在尝试比较两个字符,以查看一个是否大于另一个。要查看它们是否相等,我使用了 strcmp
。我可以使用类似于 strcmp
的东西吗?
I'm trying to compare two chars to see if one is greater than the other. To see if they were equal, I used strcmp
. Is there anything similar to strcmp
that I can use?
推荐答案
A char
变量实际上是一个8位整数值。它将具有从 0
到 255
的值。这些是 ASCII代码。 0
表示C空字符, 255
表示空符号。
A char
variable is actually an 8-bit integral value. It will have values from 0
to 255
. These are ASCII codes. 0
stands for the C-null character, and 255
stands for an empty symbol.
因此,当您编写以下赋值时:
So, when you write the following assignment:
char a = 'a';
与以下内容相同:
char a = 97;
因此,您可以比较两个 char
变量使用>
,<
, ==
< =
,> =
运算符:
So, you can compare two char
variables using the >
, <
, ==
, <=
, >=
operators:
char a = 'a';
char b = 'b';
if( a < b ) printf("%c is smaller than %c", a, b);
if( a > b ) printf("%c is smaller than %c", a, b);
if( a == b ) printf("%c is equal to %c", a, b);
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