C++ Reference: Standard C++ Library reference: C Library: cstring

C++官网参考链接：https://cplusplus.com/reference/cstring/

头文件 
(string.h)
C字符串
这个头文件定义了几个操作C字符串和数组的函数。

函数 
复制： 
memcpy    Copy block of memory (function) 
memmove    Move block of memory (function)
strcpy    Copy string (function)
strncpy    Copy characters from string (function)
连接： 
strcat    Concatenate strings (function)
strncat    Append characters from string (function)
比较： 
memcmp    Compare two blocks of memory (function)
strcmp    Compare two strings (function)
strcoll    Compare two strings using locale (function)
strncmp    Compare characters of two strings (function)
strxfrm    Transform string using locale (function)
查找： 
memchr    Locate character in block of memory (function)
strchr    Locate first occurrence of character in string (function)
strcspn    Get span until character in string (function)
strpbrk    Locate characters in string (function)
strrchr    Locate last occurrence of character in string (function)
strspn    Get span of character set in string (function)
strstr    Locate substring (function)
strtok    Split string into tokens (function)
其他： 
memset    Fill block of memory (function)
strerror    Get pointer to error message string (function)
strlen    Get string length (function) 
宏
NULL    Null pointer (macro)
类型 
size_t    Unsigned integral type (type)