知识点:分支控制:分支控制 #include <iostream> #include <map> using namespace std; bool isPrime(int year); int main() { int year; int month; int days = 0; array<int, 13> months = {0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}; while (cin >> year >> month)...