#include<iostream>
#include<string>
using namespace std;

void move(string *s, int index)
{
	int len = s->length();
	for (int i = index; i < len; i++)
	{
		(*s)[i] = (*s)[i + 1];
	}
}
void change(string *s, string t)
{
	int len1 = s->length();
	int len2 = t.length();
	int s_index = 0;//记录长串下标
	while (s_index <= len1)
	{
		if ((*s)[s_index] == t[0]) 
		{
			int index_s1 = s_index;
			bool flag=true;
			for (int i = 1; i < len2; i++)
			{
				//char a1 = (*s)[s_index];
				index_s1 = index_s1 + 1;
				//char a2 = (*s)[index_s1];
				if ((*s)[index_s1] != t[i])
				{
					flag = false;
					break;
				}
			}
			if (flag)
			{
				int index = s_index;
				for (int n = 0; n < len2; n++)
				{
					move(s, index);
				}
				s_index--;
			}
		}
		s_index++;
	}

}
int main()
{
	string s = "abcdefgyzhabc";
	cout << s << endl;
	string t = "yzh";
	cout << t << endl;
	change(&s,t);
	cout << s<<endl;
	system("pause");
	return 0;
}

仅作学习记录
参考https://blog.csdn.net/cckevincyh/article/details/46475331?depth_1-utm_source=distribute.pc_relevant.none-task&utm_source=distribute.pc_relevant.none-task