A new string. Split () method overload in Framework 2.0

In Version 1.1, the split method can only use separators to separate a string to obtain an array. If the two separators are continuous, this method will parse it into an empty string in the array, but the current framework2. provides an overload and does not support parsing continuous delimiters into empty strings, you only need to pass a true parameter in the overload method so that the method can ignore null strings. This is good for some logic. Otherwise, if you want to implement it, then we can only split, recycle the array, and pour it into a new array.