如何解决cout 语句中 C++ 中的 Pre 和 Post 增量
#include<iostream>
using namespace std;
int main(){
int t;
t=1;
cout<<"--1--"<<"\n";
cout<<++t + ++t<<"\n";
t=1;
cout<<++t <<"\t"<< ++t<<"\n";
t=1;
cout<<"--2--"<<"\n";
cout<<++t + t++<<"\n";
t=1;
cout<<++t <<"\t"<< t++<<"\n";
t = 1;
cout<<"--3--"<<"\n";
cout<<++t + t++ + ++t<<"\n";
t = 1;
cout<<++t <<"\t"<< t++ <<"\t"<< ++t<<"\n";
t = 1;
cout<<"--4--"<<"\n";
cout<<++t + t++ + t++<<"\n";
t = 1;
cout<<++t <<"\t"<< t++ <<"\t"<< t++<<"\n";
t = 1;
cout<<"--5--"<<"\n";
cout<<t++ + t++ + t++<<"\n";
t = 1;
cout<<t++ <<"\t"<< t++ <<"\t"<< t++<<"\n";
t = 1;
cout<<"--6--"<<"\n";
cout<<t++ + t++ + ++t<<"\n";
t = 1;
cout<<t++ <<"\t"<< t++ <<"\t"<< ++t<<"\n";
t = 1;
cout<<"--7--"<<"\n";
cout<<++t + ++t + t++<<"\n";
t = 1;
cout<<++t <<"\t"<< ++t <<"\t"<< t++<<"\n";
t = 1;
cout<<"--8--"<<"\n";
cout<<++t + t++ + ++t + ++t<<"\n";
t = 1;
cout<<++t <<"\t"<< t++ <<"\t"<< ++t <<"\t"<< ++t<<"\n";
t=1;
cout<<"--9--"<<"\n";
cout<<++t + t++ + ++t + t++<<"\n";
t=1;
cout<<++t <<"\t"<< t++ <<"\t"<< ++t <<"\t"<< t++<<"\n";
}
在这里,我试图弄清楚结果如何。
--1--
6
3 3
--2--
5
3 1
--3--
9
4 2 4
--4--
8
4 2 1
--5--
6
3 2 1
--6--
7
3 2 4
--7--
9
4 4 1
--8--
14
5 3 5 5
--9--
13
5 3 5 1
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