#include <iostream>
#include <fstream>
#include <string>
using namespace std;
string CharToStr(char * contentChar)
{
string tempStr;
for (int i=0;contentChar[i]!='\0';i++)
{
tempStr+=contentChar[i];
}
return tempStr;
}
void DelLineData(char* fileName, int lineNum)
{
ifstream in;
in.open(fileName);
string strFileData="";
int line=1;
char lineData[1024] = {0};
while(in.getline(lineData, sizeof(lineData)))
{
if(line==lineNum)
{
//strFileData+="\n";
}
else
{
strFileData+=CharToStr(lineData);
strFileData+="\n";
}
line++;
}
in.close();
ofstream out;
out.open(fileName);
out.flush();
out<<strFileData;
out.close();
}
int main()
{
//cout << "Hello world!" << endl;
// printf("%s","nihao");
DelLineData("D:\\abc.txt",3);//刪除文檔中的第三行;
return 0;
}