本期主要介绍一些字符串相关函数及模拟实现目录1.函数介绍 1.1 strlen1.2 strcpy1.3 stract1.4strcmp 1.5 strncpy1.6 strncat1.7 strncmp1.8 strstr1.9 strtok1.10strerror1.11memcpy1.12memmove1.13memcmp2.库函数的模拟实现2.1strlen模拟实现2.2strcpy模拟实现2.3strcat模拟实现2.4strstr模拟实现2.5strcmp模拟实现2.6memcpy模拟实现2.7memmove