其它的太麻烦了
2025-07-14 09:39:52
发布于:浙江
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#include<bits/stdc++.h>
using namespace std;
int main(){
char c;
cin>>c;
if(isupper(c)) cout<<char(c+32);
else cout<<char(c-32);
return 0;
}
这里空空如也
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