c语言库函数 字符串_C语言的标准库字符串函数

c语言库函数 字符串

标准库字符串函数 (Standard Library String functions)

Mostly, every C compiler provides a set of useful library functions for handling strings. Here is a list of more commonly used functions with their uses:

通常，每个C编译器都会提供一组有用的库函数来处理字符串。 这是更常用的功能及其用途的列表：

Function	Use
strlen	To find length of a string
strlwr	To convert all characters of a string to lowercase
strupr	To convert all characters of a string to uppercase
strcpy	To copy one string into another
strncpy	To copy first n characters of a string into another
strdup	To duplicate a string
strrev	To reverse a string
strcat	To append one string at the end of another string
strncat	To append first n characters of a string at the end of another
strcmp	To compare two strings
strncmp	To compare first n characters of two strings
strcmpi	To compare two strings without regarding the case(“I” denotes the func. Ignores case)
stricmp	Similar to strcmpi
strnicmp	To compare first n characters of two strings without regarding case
strchr	To find first occurrence of a given ‘character’ in a string
strrchr	To find last occurrence of a given ‘character’ in a string
strstr	To find first occurrence of a given ‘string’ in another string
strset	Sets all characters of a string to a given character
strnset	Sets first n characters of a string to a given character

功能	用
len	查找字符串的长度
Strlwr	将字符串的所有字符转换为小写
Struts	将字符串的所有字符转换为大写
strcpy	将一个字符串复制到另一个
结构	将字符串的前n个字符复制到另一个
strdup	复制字符串
施特雷夫	反转字符串
strcat	在另一个字符串的末尾附加一个字符串
Strncat	将字符串的前n个字符附加在另一个字符的末尾
strcmp	比较两个字符串
strncmp	比较两个字符串的前n个字符
strcmpi	比较两个字符串时不考虑大小写(“ I”表示函数，忽略大小写)
tric	类似于strcmpi
Strnicmp	比较两个字符串的前n个字符而不考虑大小写
strchr	查找字符串中给定“字符”的首次出现
strrchr	查找字符串中给定“字符”的最后一次出现
strstr	查找另一个字符串中给定“字符串”的首次出现
strset	将字符串的所有字符设置为给定字符
结构集	将字符串的前n个字符设置为给定字符

String Library Functions with Examples

字符串库函数和示例

翻译自: https://www.includehelp.com/c/standard-library-string-functions.aspx

c语言库函数 字符串