C ++重载运算符=用于字符串

Question

Word Word::operator= (const Word& RHS) const{

    if(word != RHS.GetWord()){
    }
}

I'm at a loss here, how do you effectively delete the current object string, then copy the inputed string to it?

Answer 1

Your error is on the prototype:

Word  Word::operator= (const Word& RHS) const{
//  ^                                   ^^^^^ ???

An assignment-operator is useless on a constant object, so the last const is bad.
Also, a flaw the compiler cannot diagnose (unless you use it somewhere an lvalue is neccessary), it should return by reference.

Anyway, as a member-by-member-copy is good enough, there is no sense in defining your own assignment-operator at all:
Use the default one.