C++ 移除字串的問題 高手請進

#include <iostream>
#include <stdlib.h>
#include <fstream>
using namespace std;
int main(int argc, char* argv[])
{
fstream file,file1;
file.open("past.txt",ios::in);
file1.open("new.txt",ios::out);
char str;
if(file)
if(file1)
while(!file.read(&str,sizeof(char)).eof())
if(str!='<'&&str!='>')
file1.write(&str,sizeof(char));

file.close();
file1.close();
system("pause");
return 0;
}
past.txt是有含＜＞
new.txt不含＜＞
有什麼問題再問吧!

2009-04-01 15:55:02 補充：
#include ＜iostream＞
#include ＜stdlib.h＞
#include ＜fstream＞
using namespace std;
int main(int argc, char* argv[])
{
bool BOOL_writ=true;
fstream file,file1;
file.open("c.txt",ios::in);
file1.open("d.txt",ios::out);
char str;
if(file)
if(file1)

2009-04-01 15:55:21 補充：
接續
while(!file.read(&str,sizeof(char)).eof())
{
if(str=='＜')
BOOL_writ=false;
if(BOOL_writ)
file1.write(&str,sizeof(char));
if(str=='＞')
BOOL_writ=true;
}
file.close();
file1.close();
system("pause");
return 0;
}

2009-04-01 15:55:40 補充：
有什麼問題再問吧!

Sorry, don't really understand the question. Don't you mean removing all the "<" and ">" signs?