高手请进

[ly309431053]

#include "stdafx.h"
#include <cstring>
#include <string>
#include <iostream>
using namespace std;

int _tmain(int argc, _TCHAR* argv[])
{
const char *cp1="mary an linda";
const char *cp2="are friends.";
size_t len=strlen(cp1)+strlen(cp2);
char *result_str=new char[len+1];
char *p=*result_str;
while(*p)
cout < <*p++ < <endl;
strcpy(result_str,cp1);
strcpy(result_str,cp2);
delete [] result_str;
const string str1("mary an linda");
const string str2("are friends.");
string result_str1;
result_str1=str1;
result_str1+=str2;

return 0;
}

这程序运行不了，那里出错啊？怎么修改？怎么样把result_str1（这个要直接输出，不用循环语句）输出呢？请各位帮帮忙谢谢

[mengde007]

char *p=result_str;

[mengde007]

while(*p)
cout < <*p++ < <endl;
这个改一下：cout<<p;
result_str1也一样；不都是char*行的吗，

[hityct1]

#include "stdafx.h" 
#include <cstring> 
#include <string> 
#include <iostream> 
using namespace std; 

int _tmain(int argc, _TCHAR* argv[]) 
{ 
	const char *cp1="mary and linda"; 
	const char *cp2="are friends."; 
	size_t len=strlen(cp1)+strlen(cp2); 
	char *result_str=new char[len+2]; 


	strcpy(result_str,cp1);
	strcat(result_str," "); 
	strcat(result_str,cp2); 
	//strcat(result_str,"\0");

	char *p=result_str; 
	cout<<p<<endl; 


	delete [] result_str; 

	return 0; 
} 

cout<<p<<endl;会输出字符串，而不是字符。