c++ c++-faq copy-constructor assignment-operator rule-of-three
深拷贝和浅拷贝之间有什么区别？
language-agnostic copy deep-copy shallow-copy
assignment-operator ×1
c++ ×1
c++-faq ×1
copy ×1
copy-constructor ×1
deep-copy ×1
language-agnostic ×1
rule-of-three ×1
shallow-copy ×1