递归函数 reverseList 的终止条件是：
cpp复制1#include <iostream> 2using namespace std; 3,[object Object], 4,[object Object], 5,[object Object], 6,[object Object], 7,[object Object], 8,[object Object], 9,[object Object], 10,[object Object],cpp复制1},[object Object],
1#include <iostream> 2using namespace std; 3,[object Object], 4,[object Object], 5,[object Object], 6,[object Object], 7,[object Object], 8,[object Object], 9,[object Object], 10,[object Object],
1},[object Object],
head->next==nullptr
head==nullptr||head->next==nullptr
head->data==0
head->next->next==nullptr