c語言實現字符指針(字符串)數組的排序

需求:

"ff555d", "114ddd", "114dd","aaa", "aaab", "aaa" d對它們進行排序

頭文件：

#include<stdlib.h>
#include<stdio.h>
#include<string.h>

函數原型:

void printArray(char **buff,int len);

void sortBuff(char **buff[],int len);

實現方法:

void printArray(char **buff, int len){

    int i;

    for (i = 0; i < len; ++i){
        printf("%s\n", buff[i]);
    }

}

void sortBuff(char **buff,int len){

    char *temp;    //零時交換變量

    int i, j;

    /*選擇排序法*/
    for (i = 0; i < len; ++i){

        for (j = i + 1; j < len; ++j){

            if( strcmp(buff[i], buff[j]) > 0){ //應用string.h  
                                                //    int strcmp(    
                temp = buff[i];                    //        const char *string1,
                                                //        const char *string2 
                buff[i] = buff[j];                //    );
                                                //string1 > string2 返回值大於0 ， == 為等於0， < 為小於0
                buff[j] = temp;                
            

                

            }

        }

    }

}

 

測試:

void main(){

    char *buff[] = {"ff555d", "114ddd", "114dd","aaa", "aaab", "aaa"};

    printf("排序前\n");

    printArray(buff, sizeof(buff) / sizeof(buff[0]));

    printf("排序后\n");

    sortBuff(buff, sizeof(buff) / sizeof(buff[0]));

    printArray(buff, sizeof(buff) / sizeof(buff[0]));

    system("pause");
}

運行結果：