檔案

Excel中顯示

記事本和Notepad中顯示

程式碼

#include <bits/stdc++.h>
using namespace std;

const char *input_file_name = "input.csv";
const int buf_size = 10*1024*1024; //一次讀10MB
static char buffer[buf_size];

void read(){
  FILE* pFILE = fopen(input_file_name, "r");
	fseek(pFILE, 0, SEEK_SET
 
);
  string str = "";
  while(!feof(pFILE)){
    int size = fread(buffer, 1, buf_size, pFILE);
    char* buf = buffer;
	  const char* buf_end = buf + size;
	  while(buf < buf_end){
      if (*buf == '\n'){
        printf("%s\n", str.c_str());
        str = "";
        ++
 
buf;
        continue;
      }
      str += *buf, ++buf;
	  }
  }
	fclose(pFILE);
  return ;
}

int main(){
  read();
  return 0;
}