Explore small features of C ++, values and assignments

A [1] = "ASD"CodeI think you will often see that we often have a very easy way to reload such operators, so how to assign values is actually not difficult, the key lies in the reference FEATURES OF C ++:

# Include <iostream> <br/> using namespace STD; <br/> Class A {<br/> Public: <br/> (); <br/> Int & operator [] (INT d) {<br/> // data = D; <br/> return data; <br/>}< br/> PRIVATE: <br/> int data; <br/>}; <br/> A: () {<br/> DATA = 0; <br/>}< br/> main () {<br/> A; <br/> A [1] = 2; <br/> Int & B = A [1]; <br/> A [1] = 1; <br/> cout <B; <br/>}

The above Code does not confuse you. The key is to set it as a reference to the return value in the return of the operator overload function, so we can directly assign values to it.

I hope you can correct the shortcomings in this article.