C语言 可运行出窗口，但提取不出来信息，求看看那里出问题了

Question

include <stdio.h>

include <conio.h>

include <string.h>

include <stdlib.h>

#include <malloc.h> /将数字转换成整数/ int ChangeStrToInt (char str[]){ int result = 0;
/* 下面代码中把数组名当作指针变量来使用 */
for(; * str!= '\0'; str++)
{
/*将字符表示的数字转换成对应的整数数字并拼接成对应的整数 */ result = result * 10 + ( str - 48); }
return result; } / 从字符串中取出对应的子串 / / 如：字符串"ABCD",取出第二个字符开始到第4个字符结束，得到字符串"BCD" / char * GetSubString(char * str, int begin, int end)
{
char * result;
int i;
/ 为局部变量申请内存 */
result = (char )malloc(100); / 用空字符填充字符串 /
for(i = 0; i<100;i++) result[i] = 0;
/ 取子串 */
for(i = begin - 1;i<= end - 1;i++) result[i - begin + 1] = str[i]; return result;
}
void GetIDCodeInfo(char * idCode,int currentYear,int * year, int * month, int * day, int * age, int * gender)
{ /*GetSubString(idCode,7,10)是函数调用语句 */
/*把一个函数调用的结果作为另外一个函数调用语句的实际参数 */
/*称为函数的嵌套使用 */

• year = ChangeStrToInt(GetSubString(idCode,7,10));
• month = ChangeStrToInt(GetSubString(idCode,11,12));
• day = ChangeStrToInt(GetSubString(idCode,13,14));
• age = currentYear -* year; if(ChangeStrToInt(GetSubString(idCode,15,17)) % 2 == 0)
  {
• gender = 0;
  }
  else
  {
• gender = 1;
  }
  }
  main()
  {
  char idCode[30] =""; int year,month,day,age,currentYear = 2021,gender;
  year = month = day = age = gender = 0;
  printf("输入18位的身份证号码[如:429004197507022369]:") ; gets(idCode); GetIDCodeInfo(idCode,currentYear,&year,&month,&day,&age,&gender); printf("\n输入身份证号码为:%s\n 当前年份为:%d\n\t 出生日期为:[%4d/2d:%2d]\n\t 年龄:%d\n\t 性别:%s", idCode,currentYear,year,month,day,age,gender == 0? "女":"男"); getch(); ｝

Answer 1

6301看好西宁滴呗。

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

/*将数字转换成整数*/
int ChangeStrToInt(char *str)
{
    int result = 0;

    /* 下面代码中把数组名当作指针变量来使用 */
    //for (; *str != '\0'; str++)
    while(*str)
    {
        /*将字符表示的数字转换成对应的整数数字并拼接成对应的整数 */
        result +=  *str - '0';
        result *= 10;
        *str++;
    }

    return result/10;
} // 从字符串中取出对应的子串
// 如：字符串"ABCD",取出第二个字符开始到第4个字符结束，得到字符串"BCD"
char *GetSubString(char *str, int begin, int end)
{
    char *result;
    int i,j;
    /* 为局部变量申请内存 */
    //result = (char)malloc(100); /* 用空字符填充字符串 */
    result = (char *)calloc(100, sizeof(char)); //分配内存并用0填充
    // for (i = 0; i < 100; i++)
    // {
    //     result[i] = 0;
    // }

    /* 取子串 */
    //还得检测是否到字符串结尾了
    for (i = begin - 1,j=0; i <= end - 1 && str[i] != '\0'; i++,j++) //for (i = begin - 1; i <= end - 1; i++)
    {
        //result[i - begin + 1] = str[i];
        result[j] = str[i];
    }
    result[j] = '\0';
    return result;
}
void GetIDCodeInfo(char *idCode, int currentYear, int *year, int *month, int *day, int *age, int *gender)
{
    /*GetSubString(idCode,7,10)是函数调用语句 */
    /*把一个函数调用的结果作为另外一个函数调用语句的实际参数 */
    /*称为函数的嵌套使用 */

    //日期，年龄，性别都是指针，需要*
    *year = ChangeStrToInt(GetSubString(idCode, 7, 10));
    *month = ChangeStrToInt(GetSubString(idCode, 11, 12));
    *day = ChangeStrToInt(GetSubString(idCode, 13, 14));
    *age = currentYear - *year;

    if (ChangeStrToInt(GetSubString(idCode, 15, 17)) % 2 == 0)
    {
        *gender = 0;
    }
    else
    {
        *gender = 1;
    }
}
int main()
{
    char idCode[30] = "";
    int year, month, day, age, currentYear = 2021, gender;
    year = month = day = age = gender = 0;

    printf("输入18位的身份证号码[如:429004197507022369]:");
    gets(idCode);    
    GetIDCodeInfo(idCode, currentYear, &year, &month, &day, &age, &gender);
    //printf("\n输入身份证号码为:%s\n 当前年份为:%d\n\t 出生日期为:[%4d/2d:%2d]\n\t 年龄:%d\n\t 性别:%s", idCode,currentYear,year,month,day,age,gender == 0? "女":"男"); 
    printf("\n输入身份证号码为:%s\n当前年份为:%d\n出生日期为:[%4d-%2d-%2d]\n年龄:%d\n性别:%s\n", idCode, currentYear, year, month, day, age, gender == 0 ? "女" : "男");

    getchar();
    return 0;
}