为什么for循环不将变量作为值：
为什么for循环不将变量作为值：
提问于 2017-03-05 14:01:56
这个for循环确实有问题(我有问题吗？)
-Was使用GmailApp.getInboxThreads(k，max)k；但是这跳过了所有其他线程。(你能告诉我为什么吗？)
-Now --只有当k=0和max =100时才能工作。如果我尝试执行k=100和max =100，就会得到一组空白的数据。执行日志显示，对于k=100和max =100，完全跳过for循环。
谢谢你提前帮忙！
function newEmailAddressList(){
var ss = SpreadsheetApp.getActiveSpreadsheet();
var sheet = ss.getSheetByName("NewEmails");
var range = sheet.getRange("A3:Q");
var varRange = sheet.getRange("A2:G2");
var addrA = [];
range.clearContent(); //May need to change this to my delete function to speed things up.
var contact = ContactsApp.getContacts(); //var contact = ContactsApp.getContacts();
//////////
for(var i = 0; i < contact.length; i++){ //for(var i = 0;i < contact.length;i++){
//var addrA = []; //var addrA = []; This can't be here. It is not global or accessable if it is in this loop and the other global version doesn't access it apparently
var addresses = contact[i].getEmails(); // var addresses = contact[i].getEmails();
for(var j = 0;j < addresses.length; j++){ //for(var j = 0;j < addresses.length;j++) {
var address = addresses[j].getAddress(); // s += addresses[j].getAddress() + br;
addrA.push(address); //
};
}; /////////////////////AT THIS POINT CONTACTS ARRAY IS COMPLETE/////////////////////////
var joinAddr = addrA.join();
//var lowerAddr = joinAddr.toLowerCase();
var startingEmail = sheet.getRange("C2").getValue();
var numEmails = sheet.getRange("E2").getValue();
var max = numEmails;
for (var k = startingEmail; k<max; ++k){
var threads = GmailApp.getInboxThreads()[k]; //get max threads starting at most recent thread
var messages = threads.getMessages()[0];
var sndr;
var rcpnt;
var srAry = [];
var sndr = messages.getFrom().replace(/^.+<([^>]+)>$/, "$1"); //http://stackoverflow.com/questions/26242591/is-there-a-way-to-get-the-specific-email-address-from-a-gmail-message-object-in
var sndrLower = sndr.toLowerCase;
var rcpnt = messages.getTo().replace(/^.+<([^>]+)>$/, "$1");
var rcpntLower = rcpnt.toLowerCase;
var cc = messages.getCc().replace(/^.+<([^>]+)>$/, "$1");
var ccLower = cc.toLowerCase;
//srAry.push(sndr);
//srAry.push(rcpnt);
//srAry.push(cc);
var isIn = joinAddr.search(sndr || rcpnt);
if(isIn == -1){
var instance = k;
var dat = messages.getDate();
//var sndr = messages.getFrom();
//var rcpnt = messages.getTo();
var sub = messages.getSubject();
var msg = messages.getPlainBody();
var info = [instance,dat,sndr,rcpnt,cc,sub,msg];
sheet.appendRow(info); //appendRow only works with sheet class not range class
};//else{ break; };
};
//Browser.msgBox(("Here are your New Contacts from Emails "k" through "k + max"!"));
getContactGroups();
};回答 2
Stack Overflow用户
回答已采纳
发布于 2017-03-05 14:37:04
我认为您在如何使用Gmail或如何运行for循环方面存在问题。
关于您的第一个问题，请查看Gmail API文档
您可以使用：
getInboxThreads()
//OR
getInboxThreads(start, max)
// Where start if the index of the first of thread and max is the maximum number of thread retrieved所以当你这么做的时候: GmailApp.getInboxThreads(k，max)k；
检索范围为K到最大值的一个元素K
要获得所有线程，：
var threads = GmailApp.getInboxThreads();
//OR
var threads = GmailApp.getInboxThreads(k, max);
//Where K is starting email and max maximum number of thread您的循环必须从零开始，因为您正在处理上下文GmailApp之外的数组。因此：
var threads = GmailApp.getInboxThreads(k, max);
//threads is an array of threads range from 0 to max?
//Don't use k again!
for(var i=0; i<threads.length;i++){
var currentThread = threads[i];
//do what you need with the thread
}Stack Overflow用户
发布于 2017-03-05 14:29:03
注意，for循环严格等于while循环：
//for (/*Init*/; /*Cond*/; /*Step*/) { /*Action*/ }
//stricty equal to :
/*Init*/;
while (/*Cond*/) {
/*Action*/;
/*Step*/;
}因为k= max = 100，所以k < max返回false，所以您不会在循环中输入。如果要保持k= max = 100，则应该使用k <= max (小于或等于)或do-循环。
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/42614605
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