.net中判断一个字符串中有几个"||"

Question

string imgs = "http://localhost/world_zhideng/upload/imgs/客户案例LOGO/20091218144715立白--20090901153442.gif||http://localhost/world_zhideng/upload/imgs/客户案例LOGO/20091218144725中信银行--20090619095350.jpg||http://localhost/world_zhideng/upload/imgs/客户案例LOGO/20091218144741沃尔玛--20090619095323.jpg||http://localhost/world_zhideng/upload/imgs/客户案例LOGO/20091218144755wm--20091010174125.jpg";怎样得到imgs中有几个"||"
结果应该为3跪求答案！

Answer 1

string[] arr=str.Split(new string[] {"||"},StringSplitOptions.RemoveEmptyEntries);
Console.Write(arr.Count-1);