List的Select 和Select().tolist()
只用select时 delp中元素sign的值并没有变，但是当tolist之后，sign的值变成了1； select官方解释; 将序列中的每个元素投影到新表单。测试用新变量接收： 用aaa新变量接收，但是此时aaa和delp的sign都是0；但是在下面tolist ...
原文：关于LIST.Select（）.ToList()慢的问题
var sendlist emailList.Select email gt new MailMessage MailServer SMTPServer, UserName Sender, PassWord EmailPassword, ServerCode ServerCode, ToAddr email.Email, BCC string.Empty, CC string.Empty, Tit ...
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