C根据排序字符串-白红宇

C根据排序字符串

阅读量：4346 次

发布时间：2019-06-07

本文共 2126 字，大约阅读时间需要 7 分钟。

#include
     
      #include
      
       #include 
       
        #define STR_LEN_MAX 100char **ppcStringArry = NULL;int num = 0;void OutPutTest1();void OutPutTest2();/* 字符串数组输出函数*/void OutPut(){    int i = 0 ;    for (; i < num; i++)    {        if (NULL != ppcStringArry[i])        {            //free(ppcStringArry[i]);        }        printf("index is %d, string is %s.\r\n", i, ppcStringArry[i]);    }    printf("\r\n");    printf("%s\r\n", "----------------------------------");}/* 字符串数组排序输出函数*/void SortOutPut(){    int m = 0;    int n = 0;    char * temp = NULL;    for (m = 0; m < num -1; m++)    {        for (n = m + 1; n < num; n++)        {            if (strcmp(ppcStringArry[m], ppcStringArry[n]) > 0)            {                temp = ppcStringArry[m];                ppcStringArry[m] = ppcStringArry[n];                ppcStringArry[n] = temp;            }        }    }    OutPut();}int main(){    //OutPutTest1();    OutPutTest2();}/* 使用fgets函数*/void OutPutTest1(){    char acDate[STR_LEN_MAX] = {
   0};    FILE * pFile;    pFile = fopen("F://C/1.txt", "ab+");    num = 0;    ppcStringArry = (char**)malloc(STR_LEN_MAX * sizeof(char*));    while(NULL != fgets(acDate, STR_LEN_MAX, pFile))    {        ppcStringArry[num] = (char*)malloc(STR_LEN_MAX);        memset(ppcStringArry[num], 0, STR_LEN_MAX);        memcpy(ppcStringArry[num], acDate, strlen(acDate)+1);        memset(acDate, 0, sizeof(acDate));        num++;    }    SortOutPut();}/* 使用fscanf函数*/void OutPutTest2(){    //char acDate[STR_LEN_MAX] = {0};    FILE * pFile;    pFile = fopen("F://C/1.txt", "ab+");    int ret = 0;    num = 0;    ppcStringArry = (char**)malloc(STR_LEN_MAX * sizeof(char*));    ppcStringArry[num] = (char*)malloc(STR_LEN_MAX);    memset(ppcStringArry[num], 0, STR_LEN_MAX);    ret = fscanf(pFile, "%s", ppcStringArry[num]);    while( EOF != ret)    {        num++;        ppcStringArry[num] = (char*)malloc(STR_LEN_MAX);        memset(ppcStringArry[num], 0, STR_LEN_MAX);        ret = fscanf(pFile, "%s", ppcStringArry[num]);    }    SortOutPut();}