Regex reg = new Regex("(-)");
string[] str = reg.Split("one-two-three");
和
Regex reg = new Regex("-");
string[] str = reg.Split("one-two-three");
的区别。
加括号和不加括号有什么区别
输出分别为：one         one
                        -            two
                      two          three
                         -
                      three