C++ 需要3个单独的输出 想要的输出：

如何从每个循环中获得输出？

1）您应该将每个循环开头的

列初始化为
0


2） 在
while
和
do
循环中，在进入内部循环之前，将
行
初始化为
0

最后的输出
3
是由于
do while
循环中有一个入口。
您可以让
for
循环保持原样：

0 0, 0 1, 0 2
1 0, 1 1, 1 2
2 0, 2 1, 2 2

0 0, 0 1, 0 2
1 0, 1 1, 1 2
2 0, 2 1, 2 2

0 0, 0 1, 0 2
1 0, 1 1, 1 2
2 0, 2 1, 2 2

0 0, 0 1, 0 2
1 0, 1 1, 1 2
2 0, 2 1, 2 2
3 3

0 0, 0 1, 0 2
1 0, 1 1, 1 2
2 0, 2 1, 2 2

0 0, 0 1, 0 2
1 0, 1 1, 1 2
2 0, 2 1, 2 2

0 0, 0 1, 0 2
1 0, 1 1, 1 2
2 0, 2 1, 2 2

    for (; column < colCount; column++){
        for(row = 0; row <= (rowCount - 1); row++){
            std::cout << column << " " << row;
            if(row < (rowCount - 1))
                std::cout << ", ";
        }
        std::cout << std::endl;
    }

#include <iostream>

int main ()
{
    int row, column = 0, colCount = 3, rowCount = 3;

    //for loop
    for (column; column < colCount; column++){
        for(row = 0; row <= (rowCount - 1); row++){
            std::cout << column << " " << row;
            if(row < (rowCount - 1))
                std::cout << ", ";
        }
        std::cout << std::endl;
    }
    std::cout<<std::endl;
    //while loop
    column = 0;
    row = 0;
    while(column < rowCount){
        while(row < rowCount){
            std::cout << column << " "<< row;
            if(row < (rowCount - 1))
                std::cout << ", ";
            row++;          
        }
        std::cout << std::endl;   
        column += 1;
        row = 0;
    }
    //do while loop
    std::cout<<std::endl;
    column = 0;
    row = 0;
    do{
        do{
            std::cout << column << " "<< row;
            if(row < (rowCount - 1))
                std::cout << ", ";
            row++;  
        }while(row < rowCount);
        std::cout << std::endl;
        column +=1;
        row = 0;
    }while(column < colCount);
    return 0;
}