linuxC语言字符串函数大全[转].doc

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1、函数名:stpcpy 功  能:拷贝一个字符串到另一个 用  法:char*stpcpy(char*destin,char*source); 程序例:#include #includeintmain(void) {    charstring[10];    char*str1="abcdefghi";   stpcpy(string,str1);    printf("%s",string);    return0; }       函数名:strcat 功  能:字符串拼接函数 用  法:ch

2、ar*strcat(char*destin,char*source); 程序例:#include #includeintmain(void) {    chardestination[25];    char*blank="",*c="C++",*Borland="Borland";   strcpy(destination,Borland);    strcat(destination,blank);    strcat(destination,c);   printf("%s",destina

3、tion);    return0; }       函数名:strchr 功  能:在一个串中查找给定字符的第一个匹配之处 用  法:char*strchr(char*str,charc); 程序例:#include #includeintmain(void) {     charstring[15];     char*ptr,c='r';    strcpy(string,"Thisisastring");     ptr=strchr(string,c);     if(ptr)      

4、  printf("Thecharacter%cisatposition:%d",c,ptr-string);     else        printf("Thecharacterwasnotfound");     return0; }       函数名:strcmp 功  能:串比较 用  法:intstrcmp(char*str1,char*str2); 看Asic码，str1>str2，返回值>0；两串相等，返回0程序例:#include #includeintmain(void

5、) {     char*buf1="aaa",*buf2="bbb",*buf3="ccc";     intptr;    ptr=strcmp(buf2,buf1);     if(ptr>0)        printf("buffer2isgreaterthanbuffer1");     else        printf("buffer2islessthanbuffer1");    ptr=strcmp(buf2,buf3);     if(ptr>0)        printf("buffer2isgreat

6、erthanbuffer3");     else        printf("buffer2islessthanbuffer3");    return0; }       函数名:strncmpi 功  能:将一个串中的一部分与另一个串比较,不管大小写 用  法:intstrncmpi(char*str1,char*str2,unsignedmaxlen); 程序例:#include #includeintmain(void) {    char*buf1="BBB",*buf2="bb

7、b";    intptr;   ptr=strcmpi(buf2,buf1);   if(ptr>0)       printf("buffer2isgreaterthanbuffer1");   if(ptr<0)       printf("buffer2islessthanbuffer1");   if(ptr==0)       printf("buffer2equalsbuffer1");   return0; }       函数名:strcpy 功  能:串拷贝 用  法:char*strcpy(char*st

8、r1,char*str2); 程序例:#include #includeintmain(void) {     charstring[10];     c