【简答题】执行下列关于IndexOf()方法后,x的值等于3的是A. string s = "abcfde"; int x = s.IndexOf("f"); B. string s = "sdfjlsdf"; int x = s.IndexOf("j"); C. string s = "djgldf"; int x = s.IndexOf("d"); D. string s = "fjasdfjl"; i...
【简答题】执行下列关于IndexOf()方法后,x的值等于0的是A. string s = "abccde"; int x = s.IndexOf("abc"); B. string s = "sdfjlsdf"; int x = s.IndexOf("fj"); C. string s = "djgldf"; int x = s.IndexOf("djg"); D. string s = "fjasdfj...