C++ 二维字符串数组 实现多组字符串逆序输出

  题目内容：

  代码：

#include <iostream>
#include <vector>
#include <cstring>
#include <string>

using namespace std;

void reverse_one()
{
cout<<"input the number of strings to be reversed"<<endl;
int num = 0;
cin>>num;

vector<string> str_vec;
string tmp;
for(int i=1; i<=num; i++){
cout<<"input str"<<i<<":"<<endl;
cin>>tmp;
char * ctmp = (char *)tmp.c_str();// const char * string.c_str()
str_vec.push_back(strrev(ctmp));
}
cout<<"reversed outcome:"<<endl;
for(int i=0; i<=num-1; i++){
cout<<str_vec[i]<<endl;
}
}

void my_reverse(char * my_string)
{
int unsigned my_strlen = strlen(my_string);
for(int i = 0; i <= my_strlen/2-1; i++){
char tmp = my_string[i];
my_string[i] = my_string[my_strlen-1-i];
my_string[my_strlen-1-i] = tmp;
}
}

void fun_two()
{
cout<<"input the number of strings to be reversed"<<endl;
int num = 0;
cin>>num;

char string_arr[num][5];//是string_arr[num][5]不是string_arr[num][4]:'\0'是字符串的结束标志
for(int i=0;i<num;i++){
cout<<"input str"<<i<<" with 4 characters:"<<endl;
cin>>string_arr[i];
cout<<"* "<<string_arr[i]<<" *"<<endl;
my_reverse(string_arr[i]);
cout<<"* "<<string_arr[i]<<" *"<<endl;
}

cout<<"reversed outcome"<<endl;
for(int i=0;i<num;i++){
cout<<"# "<<string_arr[i]<<" #"<<endl;
}
}

void test()
{
char st[ ][6]={"china","japan","korea"};//'\0'的问题需要注意
cout<<st[0]<<endl;
cout<<st[1]<<endl;
cout<<st[2]<<endl;
}

int main(){
fun_two();
//    test();
}