不知道2020年每个月的月历的人,看一看这里:
#include<bits/stdc++.h> using namespace std; int main() { cout<<"S M T W T F S\n 1\n2 3 4 5 6 7 8\n9 10 11 12 13 14 15\n16 17 18 19 20 21 22\n23 24 25 26 27 28 29\n" ;}
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