记录下码子
1 # define _CRT_SECURE_NO_WARNINGS 2 # include <stdio.h> 3 # include <stdlib.h> 4 5 int days(int month) 6 { 7 int day; 8 switch (month) 9 { 10 case 1: 11 day = 31; //1月天数 12 break; 13 case 2: 14 day = 29+31; //1+2月天数 15 break; 16 case 3: 17 day = 31+ 29 + 31; //1+2+3月天数 18 break; 19 case 4: 20 day = 30+ 31 + 29 + 31; 21 break; 22 case 5: 23 day = 31+ 30 + 31 + 29 + 31; 24 break; 25 case 6: 26 day = 30+ 31 + 30 + 31 + 29 + 31; 27 break; 28 case 7: 29 day = 31+30+ 31 + 30 + 31 + 29 + 31; 30 break; 31 case 8: 32 day = 31+ 31 + 30 + 31 + 30 + 31 + 29 + 31; 33 break; 34 case 9: 35 day = 30+31+ 31 + 30 + 31 + 30 + 31 + 29 + 31; 36 break; 37 case 10: 38 day =31+ 30 + 31 + 31 + 30 + 31 + 30 + 31 + 29 + 31; 39 break; 40 case 11: 41 day = 30+31+ 30 + 31 + 31 + 30 + 31 + 30 + 31 + 29 + 31; 42 break; 43 case 12: 44 day = 31+ 30 + 31 + 30 + 31 + 31 + 30 + 31 + 30 + 31 + 29 + 31; //12个月的天数 45 break; 46 } 47 return day; 48 } 49 50 51 52 53 int main() 54 { 55 int month, day,days1; 56 int month_2, day_2,days2; 57 int result; 58 printf("请输入一个日期\n"); 59 scanf("%d %d", &month, &day); 60 61 printf("请输入第二个日期\n"); 62 scanf("%d %d", &month_2, &day_2); 63 64 days1 = days(month) + day; //计算第一个日期的天数 65 days2 = days(month_2) + day_2; //计算第二个日期的天数 66 //printf("%d %d", days1, days2); 67 68 //大的天数减去小的天数 69 if (days1 > days2) 70 { 71 result = days1 - days2; 72 } 73 else 74 { 75 result = days2 - days1; 76 } 77 printf("\n"); 78 printf("%d月%d日和%d月%d日间隔%d天\n", month, day, month_2, day_2,result); 79 system("pause"); 80 return 0; 81 }
运行结果：
