自动 GMail 分级（谷歌脚本）

Question

下面的代码是一个 sendEmail 函数，我用它使用 Google Script 发送 GMail 消息，以便学生获得数学测试的反馈。我创建了一个测试，顶部的第一个值列表由我输入(see example of grading here)。我想标记不等于顶部行的问题（“不正确”）。

特别是给我带来麻烦的代码行如下：if (Answer(j)!=row[j]) {row[j]=row[j]+" (Incorrect)";}

如果我输入 Answer(5)，它会将其识别为顶部的第一行和第五列，它正在执行应有的操作。但是，当我使用变量 j 调用 Answer(j) 时，它会将所有问题标记为不正确。现在，Answer(j) 对应于学生输入的 row[j]。我不知道我做错了什么，我一直试图弄乱代码一段时间，但似乎没有任何效果。任何帮助将不胜感激！

function sendEmail() {
 var sheet = SpreadsheetApp.getActiveSheet();
 var startRow = 2; // First row of data to process
 var numRows = 5; // Number of rows to process
 var numQuestions = 17; //Number of Questions Asked on Assessment
 // Fetch the range of cells A2:B3
 var dataRange = sheet.getRange(startRow, 1, numRows, 25);
 // Fetch values for each row in the Range.
 var data = dataRange.getValues();
 for (var i = 0; i < data.length; ++i) {
   var row = data[i];
   var emailAddress = row[1]; // First column
   var message = row[0]+","+"\n"+"\n"+"Below is feedback on your assessment. Your score is a "+row[4]+".\n";
   for(var j = 4; j < numQuestions+4; ++j) {
     k=j-3;
     function Answer(n){
     return SpreadsheetApp.getActiveSheet().getRange(1, n).getValue();
     }
     if (Answer(j)!=row[j]) {row[j]=row[j]+" (Incorrect)";
     }
     message = message+"\n"+"Question #" +k+": "+row[j];
   }
   var emailSent = row[2]; // Third column
   if (emailSent !== EMAIL_SENT) { // Prevents sending duplicates
     var subject = 'Math Feedback';
     MailApp.sendEmail(emailAddress, subject, message);
     sheet.getRange(startRow + i, 2+1).setValue(EMAIL_SENT);
     // Make sure the cell is updated right away in case the script is interrupted
     SpreadsheetApp.flush();
   }
 }
}

Answer 1

我认为您的问题的原因可能是由于数组索引（第一个数字是 0.）和列号（第一个数字是 1.）之间的差异。在您的脚本中，for(var j = 4; j < numQuestions+4; ++j) { 的j 用作row 的索引。但是在function Answer(n){return SpreadsheetApp.getActiveSheet().getRange(1, n).getValue();}，j 被用作列号。既然如此，那么下面的修改呢？

发件人：

return SpreadsheetApp.getActiveSheet().getRange(1, n).getValue();

收件人：

return SpreadsheetApp.getActiveSheet().getRange(1, n + 1).getValue();

注意：

• 在您的脚本中，当标题行和数据行通过一个请求通过分离检索时，处理成本可能会降低。当这反映到你的脚本中时，它变成如下。

    function sendEmail() {
      var sheet = SpreadsheetApp.getActiveSheet();
      var startRow = 1; // First row of data to process <--- Modified
      var numRows = 5; // Number of rows to process
      var numQuestions = 17; //Number of Questions Asked on Assessment
      // Fetch the range of cells A2:B3
      var dataRange = sheet.getRange(startRow, 1, numRows, 25);
      // Fetch values for each row in the Range.
      var [header, ...data] = dataRange.getValues(); <--- Modified
      for (var i = 0; i < data.length; ++i) {
        var row = data[i];
        var emailAddress = row[1]; // First column
        var message = row[0] + "," + "\n" + "\n" + "Below is feedback on your assessment. Your score is a " + row[4] + ".\n";
        for (var j = 4; j < numQuestions + 4; ++j) {
          k = j - 3;
          if (header[j] != row[j]) { <--- Modified
            row[j] = row[j] + " (Incorrect)";
          }
          message = message + "\n" + "Question #" + k + ": " + row[j];
        }
        var emailSent = row[2]; // Third column
        if (emailSent !== EMAIL_SENT) { // Prevents sending duplicates
          var subject = 'Math Feedback';
          MailApp.sendEmail(emailAddress, subject, message);
          sheet.getRange(startRow + i, 2 + 1).setValue(EMAIL_SENT);
          // Make sure the cell is updated right away in case the script is interrupted
          SpreadsheetApp.flush();
        }
      }
    }
  

参考：

• getRange(row, column)