关于c ++：’case’标签跳过’element’的初始化

initialization of 'element' is skipped by 'case' label

本问题已经有最佳答案，请猛点这里访问。

我不明白为什么会出错：

initialization of 'element' is skipped by 'case' label.

有人能给我解释一下吗？

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void LinkedList::process_example(int choice) {
switch(choice) {
case 1:
cout << endl << endl <<"Current S =";
this->printSet();

cout <<"Enter an element :";
char* element ="lol";

//cin>>element;
cin.clear();
cin.ignore(200, '
');

this->Addelementfromback(element); //error is here
cout << endl << endl <<"Current S =";

this->printSet();
break;

case 2:
this->check_element();
break;

case 3:
cout << endl << endl;
cout <<"Current Set S =";
this->printSet();

cout << endl <<"S has";
int count = this ->check_cardinality();
cout << count <<" elements";
break;
}
}