1.前缀蛮力匹配算法(linux内核string.h)
char* strstr(const char *s, const char *wanted) { const size_t len = strlen(wanted); if (len == 0) return (char *)s; while (*s != *wanted || strncmp(s, wanted, len)) if (*s++ == '\0') return (char *)NULL; return (char *)s; }
2.KMP算法
关于什么是KMP算法:字符串匹配的KMP算法
3.PM算法