完整源码 #include<stdio.h> #include<stdlib.h> int main() { int n,a,b,c,xinqi,i,j,num,temp1,temp2,temp3; printf("请输入年份:\n"); scanf("%d", &n); a = n/100; b = n/4; c = (n+b-a)%7; if(c<=2) xinqi = c+5-((n%4==0)&&(n