计算两个日期之间的天数c语言-蒲公英云

计算两个日期之间的天数c语言

记录一下自己写的小程序

#include <stdio.h>int main()
 {
 int year1, year2, month1, month2, day1,
day2;    
 printf("请输入较小的年月日；例如2020 1 6\n");    
scanf("%d%d%d", &year1, &month1, &day1);
printf("请输入较大的年月日；例如2020 1 6\n");    
scanf("%d%d%d", &year2, &month2, &day2);    
int run[13] = {
    0, 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};    
int ping[13] = {
    0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};    
 int i = 1, b = 1, zong1 = 0, zong2 = 0;     
for (i = 1; i < year1; i++) 
 {
   if (i % 400 == 0 || (i % 100 != 0 && i % 4 == 0))
  {
       zong1 += 366;        
    if ((i + 1) == year1) 
    {
    for (b = 1; b < month1; b++)                       
    zong1 += run[b];    
      }        
  } 
  else
     {
    zong1 += 365;        
       if ((i + 1) == year1) 
       {
       for (b = 1; b < month1; b++)                        
       zong1 += ping[b];    
       }    
      }    
  }    
  zong1 = zong1 + day1 - 1;    
  for (i = 1; i < year2; i++)
   {
   if (i % 400 == 0 || (i % 100 != 0 && i % 4 == 0)) 
   {
   zong2 += 366;            
   if ((i + 1) == year2)    
      {
      for (b = 1; b < month2; b++)                     
      zong2 += run[b];            
      }        
      } 
      else 
      {
      zong2 += 365;            
      if ((i + 1) == year2) 
      {
      for (b = 1; b < month2; b++)                       zong2 += ping[b];    
          }    
      }
     }
     zong2 = zong2 + day2 - 1;      
     printf("zong1=%d,zong2=%d\n", zong1, zong2);
         printf("相差天数：%d", zong2 - zong1);    
         getchar();
 }