题解 | #左旋转字符串#

用指针也可以

class Solution {
public:
    string LeftRotateString(string str, int n) {//str="abcdefg"
        char* c = &str[0];
        for(int i = 0; i < n; i++)
        {
            str += str[i];
            c++;
        }
        cout << c << endl; //"cdefgab"
        cout << &c << endl;//address
        cout << *c << endl;//'c'
        return c;

    }
};