问题描述
以下代码是我用来使用 Google Script 发送 GMail 消息的 sendEmail 函数,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 (see example of grading here) 输入。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),它会将它识别为顶部的第一行和第五列,它正在做它应该做的事情。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 row[j],这是学生输入的内容。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();
}
}
}
解决方法
我认为您的问题的原因可能是由于数组索引(第一个数字为 0.)和列号(第一个数字为 1.)之间的差异。在您的脚本中,j
的 for(var j = 4; j < numQuestions+4; ++j) {
用作 row
的索引。但在 function Answer(n){return SpreadsheetApp.getActiveSheet().getRange(1,n).getValue();}
处,j
用作列号。在这种情况下,下面的修改如何?
来自:
return SpreadsheetApp.getActiveSheet().getRange(1,n).getValue();
致:
return SpreadsheetApp.getActiveSheet().getRange(1,n + 1).getValue();
注意:
-
在您的脚本中,当通过一个请求通过分离检索标题行和数据行时,可能会降低处理成本。当这反映到您的脚本中时,它会变成如下所示。
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(); } } }