在某种程度上，OP 的场景是独一无二的，因为它需要批量发送电子邮件给供应商，并为与每个供应商相关的项目编译 HTML 电子邮件（基于复选框的值。
这段代码：
- 从产品组工作表中获取数据（工作表名称是一个变量，因此代码可以进一步自动化），
- 创建供应商临时列表，
- 遍历供应商，一次一个
- 循环遍历数据并捕获供应商名称匹配的任何项目并且复选框未选中 (false)。
- 供应商商品数据被逐步写入数组，完成后数组被写入临时工作表（尽管可能可以进一步微调）
- 从临时工作表数据创建 html 消息。
- 邮件使用 Gmail.sendEmail 发送给供应商。
- 从临时输出表中清除临时 Take 信息
- 将未选中的复选框重新设置为“已选中”
function so5582181508() {
//setup spreadsheet
var ss = SpreadsheetApp.getActiveSpreadsheet();
var datasheetname = "HTS";
var datasheet = ss.getSheetByName(datasheetname);
var messagesheetname = "MessageOutput";
var messagesheet = ss.getSheetByName(messagesheetname);
var templatesheetname = "Email Template";
var templatesheet = ss.getSheetByName(templatesheetname);
messagesheet.clear();
// get the number of rows on the data sheet
var Avals = datasheet.getRange("A1:A").getValues();
var Alast = Avals.filter(String).length;
//Logger.log("Alast = "+Alast);
var htslast = datasheet.getLastRow();
//Logger.log("htslast = "+htslast);
// get the supplier column
var supplierRange = datasheet.getRange(3,7,Alast-2,1);
//Logger.log("the supplier range = "+supplierRange.getA1Notation());
//get the supplier data
var supplierData = supplierRange.getValues();
//get the status column
var statusRange = datasheet.getRange(3,9,Alast-2,1);
//Logger.log("the status range = "+statusRange.getA1Notation());
// get the status data
var statusData = statusRange.getValues();
var transCount = supplierData.length;
var supplierList = [];
var transData = datasheet.getDataRange().getValues();
// supplierList contains the unique supplier list
supplierData.forEach(function(x){
if(supplierList.indexOf(x[0]) === -1 && x[0]!="" ){
supplierList.push(x[0]);
}
});
var supplierCount = supplierList.length;
var itemCount = 0;
var mailMessage = [];
var mailItem = [];
//build the mail item header
var mailItemHeader = [];
mailItemHeader.push(transData[0][0]);
mailItemHeader.push(transData[0][1]);
mailItemHeader.push(transData[0][2]);
mailItemHeader.push(transData[0][3]);
mailItemHeader.push(transData[0][4]);
//mailItemHeader.push(transData[0][6]);
//Logger.log("length of new array = "+supplierCount);
//Logger.log("Number of items in table = "+transCount);
// loop through the data, once for every supplier
for (supplier = 0; supplier<supplierCount; supplier++){
mailMessage=[];
itemCount = 0;
//Logger.log("supplier = "+supplier);
//Logger.log("supplier = "+supplierList[supplier]);
// now loop through the data
// start i = 2 to allow for header
for (var i = 2; i < transCount+2; i++) {
mailItem=[];
//Logger.log("i = "+i+", SupplierList: "+supplierList[supplier]+", supplier: "+transData[i][6]+", status:"+transData[i][8])
// the suplier matches and if the checkbox is false
if (supplierList[supplier] == transData[i][6] && transData[i][8] == false){
// this this is the first item then push the mail header
if (itemCount ==0){
mailMessage.push(mailItemHeader);
// get the email address
var emailAddress = transData[i][5];
var subject = "Purchase order";
}
// this is a match
var emailAddress = transData[i][5];
//Logger.log("send email to "+supplierList[supplier]+", at "+transData[i][5]);
//Logger.log("Item: "+transData[i][0]+", Spec: "+transData[i][1]+", color: "+transData[i][3]+", quantity: "+transData[i][4]+", Unit: "+transData[i][5]);
// push the transation values for this row onto the mailitem array
mailItem.push(transData[i][0]);
mailItem.push(transData[i][1]);
mailItem.push(transData[i][2]);
mailItem.push(transData[i][3]);
mailItem.push(transData[i][4]);
//mailItem.push(transData[i][6]);
// push the row onto the rest of the mail message data
mailMessage.push(mailItem);
itemCount=itemCount+1
//update the status value to true
statusData[i-2] = [true];
}
else
{
//Logger.log("no match");
}
} // end of the transaction loop for this supplier
// define the temporary output range
var messageRange = messagesheet.getRange(1, 1, mailMessage.length, 5);
// paste the items details to the temporary output range
var messageupdate = messageRange.setValues(mailMessage);
// get the values for the items only (no header)
var messagedata = messagesheet.getRange(2, 1, mailMessage.length-1, 5).getValues();
//Logger.log("ROW#1 col1="+messagedata[0][0]+", column 2: "+messagedata[0][1]);
//Logger.log("ROW#1 col1="+messagedata[1][0]+", column 2: "+messagedata[1][1]);
//Logger.log("message data length"+messagedata.length);
var messageitemcount = messagedata.length;
//Logger.log("send email to "+supplierList[supplier]+", at "+emailAddress+", message: "+mailMessage);
// create a subject
var emailSubject = "Purchase Order: StackOverflow Test";
// get the email address
var emailaddress = emailAddress;
// message
var messagePrefix = "Attention: "+supplierList[supplier];
// start the build of the html message
var columns = 5;
var columncount=1;
var message = 'Please supply the following products:<br><br><table style="border-collapse:collapse;" border = 1 cellpadding = 5>';
// get the headers
for (h=0; h<columns;h++){
if (columncount ==1){
var header = '<tr>';
}
header+='<th style="background-color:#ffeb3b">'+mailItemHeader[h]+'</th>';
if (columncount ==5){
header+='</tr>';
}
columncount=columncount+1
}
//Logger.log("header:"+header);
// add the header to the mesage
message+=header;
// loop through the items on the temporary output and get the item values
for(c=0;c<messageitemcount;c++){
// increment message
message+='<tr><td>'+messagedata[c][0]+'</td>'+'<td>'+messagedata[c][1]+'</td>'+'<td>'+messagedata[c][2]+'</td>'+'<td>'+messagedata[c][3]+'</td>'+'<td>'+messagedata[c][4]+'</td></tr>';
}
// finalise the message
message+='</table>';
// Logger.log("DEBUG: message: "+message);//DEBUG
// send the email
GmailApp.sendEmail(emailaddress, emailSubject, messagePrefix, {htmlBody: message, });
// clear the state from the temporary outsheet sheet
messagesheet.clear();
}
//update the status range - return all to ticked (true)
statusRange.setValues(statusData);
}