this指针的使用[C++][code]

}

运行结果：
                Pixel created!
                Pixel created!
 Enter X and Y coordinates:39 44
Pixel's coordinates:
X=39 Y=44
                Pixel destroyed!
Pixel's coordinates:
X=49 Y=54
Pixel's coordinates:
X=49 Y=54
                Pixel destroyed!
                Pixel destroyed!
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