c++ string char* 获取输入值的区别

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

void reverseStr(string &s,int begin,int end){  

    while (begin < end) {
        char temp = s[begin];
        s[begin] = s[end];
        s[end] = temp;
        begin++;
        end--;
    }
}  

int main(){  

     //对于char* / char[]
    char s[1001];
    cout<<"Please input char[]:"<<endl;
    cin.getline(s, 1000);//iostream下的函数, 第二个参数表示允许的最大输入长度
    cout<<"Output:"<<endl<<s<<endl<<strlen(s)<<endl;   

    //对于string
    string ss;
    cout<<"Please input string:"<<endl;
    getline(cin, ss); //这个getline函数在<string>头文件下
    cout<<"Output:"<<endl<<ss<<endl<<ss.length()<<endl; 

	int i=0;
	int j=0;
	int icount=0;
	int jcount=0;
	while(s[i]!='\0'){
		cout<<s[i]<<icount<<" ";
		i++;
		icount++;
	}

	cout<<endl;
	while(ss[j]!='\0'){
		cout<<s[j]<<jcount<<" ";
		j++;
		jcount++;
	}

	cout<<endl;

    return 0;
}