Basic knowledge of C # and VS2010 tips

Read some basic video, only to find that their foundation is relatively weak, there is a lot of basic knowledge do not know. Here is a summary of some basic knowledge.

1:

foreach can be used not only for the index collection of the list class, but also for traversing the dictionary class, which is a great advantage over the for

dictionary<int,Long> dary =Newdictionary<int,Long>(); Dary. ADD (1,2); Dary. ADD (2,3); Dary. ADD ( A, the); stringSall =string.            Empty; //in vs2010, after typing foreach, double-click the tab key to automatically jump out of the back of the statement, very fast and convenient.             foreach(varIteminchdary) {Sall+ = Item. ToString () +"  ";            } Console.WriteLine (Sall);            Console.ReadLine (); return;

Basic knowledge of C # and VS2010 tips