导出Metatrader 4历史数据到excel

Question

我得到了以下作为脚本运行的代码，但我遇到了中间有空白行的问题，如下所示：

我一直在试图找出但不确定为什么有空白行。任何帮助将不胜感激。这是代码：

#property script_show_inputs  

input datetime StartDateTime = D'2023.11.21 00:00';  
input datetime EndDateTime   = D'2023.11.22 12:00';  

// ------ OnInit() function ------
int OnInit() 
{
   string filename = "MyMT4Data.csv";
   int file_handle = FileOpen(filename, FILE_WRITE | FILE_CSV | FILE_ANSI);

   if (file_handle == INVALID_HANDLE) {
       Print("Failed to open file: ", filename);
       return(INIT_FAILED);
   }

   // Loop through bars in reverse order, and filter by StartDateTime and EndDateTime
   for (int i = Bars - 1; i >= 0; i--) {  
       datetime barTime = Time[i];

       if (barTime >= StartDateTime && barTime <= EndDateTime) {
           // Build CSV line 

           // Explicit Line Initialization (Safeguard)
           string line =""; 

           line = TimeToString(barTime, TIME_DATE | TIME_SECONDS) + "," + 
                  DoubleToString(Open[i], Digits) + "," + 
                  DoubleToString(High[i], Digits) + "," + 
                  DoubleToString(Low[i], Digits) + "," + 
                  DoubleToString(Close[i], Digits) + "\n"; 

           // Modify line to get four-digit year
           line = StringSubstr(line, 0, 8) + StringSubstr(line, 11); 

           // Remove any leading spaces (if needed)
           line = StringTrimLeft(line); 

           // Write to file
           FileWrite(file_handle, line); 
           line ="";                  
       }
   }

   FileClose(file_handle); 
   return(INIT_SUCCEEDED); 
}

我尝试打印调试很多次，但仍然出现空白行

Answer 1

我假设，由于您单独声明每一行并将其添加到 CSV 中，因此在添加

\n (new line)

后，这些行不需要

Close

字符。

删除那个

\n

，我想你会没事的。