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我使用以下代码使用 Dev C++ 5.4.1 读取多个 .dat 文件，目的是找到读取时间。但是，我试图显示这些文件的内容，问题是显示数据（文本数据的记录）不是从头开始的，例如，如果文件（如果一个文件）包含它显示的 60 条记录最近 20 条记录。现在，如果有多个文件，输出可能会跳过第一个文件或前两个文件并打印其余文件。我认为应该用 Dev C++ 修改一些东西，否则我的时间戳功能不正确。值得注意的是，当我逐行调试时，它工作得很好，并且从头开始显示！

#include <Windows.h>
#include <ctime>
#include <stdint.h>
#include <iostream>
using std::cout;
using std::endl;
#include <fstream>
using std::ifstream;

#include <cstring>

/* Returns the amount of milliseconds elapsed since the UNIX epoch. Works on both
 * windows and linux. */

uint64_t GetTimeMs64()
{


 FILETIME ft;
 LARGE_INTEGER li;

 /* Get the amount of 100 nano seconds intervals elapsed since January 1, 1601 (UTC) and copy it
  * to a LARGE_INTEGER structure. */
 GetSystemTimeAsFileTime(&ft);
 li.LowPart = ft.dwLowDateTime;
 li.HighPart = ft.dwHighDateTime;

 uint64_t ret;
 ret = li.QuadPart;
 ret -= 116444736000000000LL; /* Convert from file time to UNIX epoch time. */
 ret /= 10000; /* From 100 nano seconds (10^-7) to 1 millisecond (10^-3) intervals */

 return ret;

}


const int MAX_CHARS_PER_LINE = 512;
const int MAX_TOKENS_PER_LINE = 20;
const char* const DELIMITER = "|";

int main()
{
  // create a file-reading object
  uint64_t a = GetTimeMs64();
  cout << a << endl;
  HANDLE h;
WIN32_FIND_DATA find_data;
h = FindFirstFile( "*.dat", & find_data );
if( h == INVALID_HANDLE_VALUE ) {
    cout<<"error"<<endl;

}
do {
    char * s = find_data.cFileName;

    ifstream fin;
  fin.open(s); // open a file
  if (!fin.good()) 
    return 1; // exit if file not found

  // read each line of the file
  while (!fin.eof())
  {
    // read an entire line into memory
    char buf[MAX_CHARS_PER_LINE];
    fin.getline(buf, MAX_CHARS_PER_LINE);

    // parse the line into blank-delimited tokens
    int n = 0; // a for-loop index

    // array to store memory addresses of the tokens in buf
    const char* token[MAX_TOKENS_PER_LINE] = {}; // initialize to 0

    // parse the line
    token[0] = strtok(buf, DELIMITER); // first token
    if (token[0]) // zero if line is blank
    {
      for (n = 1; n < MAX_TOKENS_PER_LINE; n++)
      {
    token[n] = strtok(0, DELIMITER); // subsequent tokens
        if (!token[n]) break; // no more tokens
  }
}

    // process (print) the tokens
    for (int i = 0; i < n; i++) // n = #of tokens
      cout << "Token[" << i << "] = " << token[i] << endl;
    cout << endl;
  }
            // Your code here
} while( FindNextFile( h, & find_data ) );
FindClose( h );



  uint64_t b = GetTimeMs64();
  cout << a << endl;
  cout << b << endl;
  uint64_t c = b - a;
  cout << c << endl;

  system("pause");
}
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