A thoughtfully developed PBC list is like a project plan. It details the list of supporting information and documentation "prepared by a client" that professionals need to gather to perform their review. Professionals and their clients can also use a PBC
如我们所知,在c# 6.0()中,零条件运算符是一种新事物.我尝试在WPF(.net框架4.6.1)中使用它。这是我的代码,是正确的: PackageButtonClass PBC = PackageButtonList.Find(x => x.Index == index + 1); if (PBC != null) { PBC.IsEnabled = false; } 我想使用Null-条件运算符来缩短它,就像这样: P...