编辑“︁C++ this 指针”︁（章节）

=== 实现赋值运算符 ===
this指针在运算符重载中尤为重要：

<syntaxhighlight lang="cpp">
class Array {
    int* data;
    size_t size;
public:
    Array& operator=(const Array& other) {
        if (this != &other) {  // 防止自赋值
            delete[] data;
            size = other.size;
            data = new int[size];
            std::copy(other.data, other.data+size, data);
        }
        return *this;  // 返回当前对象引用
    }
};
</syntaxhighlight>