djs.rar_djs_倒计时

#include <stdio.h> #include <math.h> #include <iostream.h> void cnt1(int m,int n); void cnt2(int m); void cnt3(int m); void scan(); int daysofmonth(int m); int year,month,day,overyear,overmonth,overday; int cnt=0; void main() { while(1) { int i; scan(); if (month==overmonth) cnt1(day,overday); else if (month+1==overmonth) { cnt1(day,daysofmonth(month)); cnt3(overday); } else { cnt1(day,daysofmonth(month)); for (i=month+1;i<=overmonth-1;i++) cnt2(i); cnt3(overday); } cout<<"从"<<month<<"月"<<day<<"日"<<"到"<<overmonth<<"月"<<overday<<"日还有"<<cnt-1<<"天"; cin>>i; break; } } void scan() { while (1) { cout<<"\n"; cout<<"请输入倒计时开始日期"; /*cin>>year;*/ cin>>month; if (month>12) {cout<<"输入的月份是错误的，一年没有"<<month<<"月"; main();} cin>>day; if (day>daysofmonth(month)) {cout<<"输入的日期是错误的"<<month<<"月没有"<<day<<"号"; main();} cout<<"请输入倒计时截止日期"; /*cin>>overyear;*/ cin>>overmonth; if (overmonth>12) {cout<<"输入的月份是错误的，一年没有"<<overmonth<<"月"; main();} if (overmonth<month) {cout<<"输入的截止日期早于开始日期，怎么倒计时？"; main();} cin>>overday; if (overday>daysofmonth(overmonth)) {cout<<"输入的日期是错误的"<<overmonth<<"月没有"<<overday<<"号"; main();} if (overmonth==month && overday<day) {cout<<"输入的截止日期早于开始日期，怎么倒计时？"; main();} break; } } void cnt1(int m,int n) { int i; for (i=m;i<=n;i++) cnt++; } void cnt2(int m) { cnt+=daysofmonth(m); } void cnt3(int m) { int i; for (i=1;i<=m;i++) cnt++; } int daysofmonth(int m) { switch (m) { case 1: case 3: case 5: case 7: case 8: case 10: case 12:return 31; case 4: case 6: case 9: case 11:return 30; case 2:if (((year%4==0 && year%100!=0)||year%400==0)) return 29; else return 28; default: return 0; } }