C ++ file stream
#include <iostream>
#include <fstream>
#include <string>
using namespace std;
void main() {
ifstream ifs;
ifs.open("main.cpp", ios::in);
if (!ifs)
{
cout << "文件打开失败" << endl;
return;
}
ofstream of;
of.open("Output.txt", ios::out|ios::trunc);
if (!of)
{
cout << "文件打开失败" << endl;
return;
}
char str;
int c_count=0;
int notNull=0;
int letterCount=0;
int letter = 0;
double AvgCount=0.0;
while (ifs.get(str))
{
cout << str;
of.put(str);
c_count++;
if (str!=10&& str!=0 && str!=13&& str != 32)
{
notNull++;
}
if ((str >= 65 && str <= 90) || (str >= 97 && str <= 122))
{
letterCount++;
if (ifs.peek()<65|| (ifs.peek()>90&& ifs.peek()<97)||ifs.peek()>122)
{
letter++;
}
}
}
cout << endl;
cout << "字符总数:" << c_count << endl;
cout << "非空白字符总数:" << notNull << endl;
cout << "字母总数:" << letterCount << endl;
cout << "平均单词长度:" << letterCount / letter << endl;
ifs.close();
of.close();
}
Renderings: