How to use C#split

One, in MSDN we can see several uses

Two, let's look at the regular use,

Let's first define an array

string " 1,2,,3,4,5,6,7 ";

The first, the results are familiar to everyone, it does not explain

var a1 = Test. Split (',');  // according to, split // var a = test. Split (', ', stringsplitoptions.removeemptyentries); No, this will remove the array null values .

Third, the second use of

var a2 = Test. Split (newchar'2",'4);         // according to 2 and, character segmentation, can only be divided into four characters to create a

The results are as follows:

Then we wondered, how did these two empty come about?

1 "We intercept the first character of the string, and we get the result: 1, and, 3,4,5,6,7

2 "Again according to, to intercept 1, and, 3,4,5,6,7, to get the result is, 1," "," "and, 3,4,5,6,7,

3 "Why is four?" The reason is that the above 4 sets the length of the Intercept character

Four, the Third Kind

  var a3 = Test. Split (newchar'2','4, stringsplitoptions.removeemptyentries);     // according to 2 and, character segmentation, the array of empty values, can only be divided into four characters to create a

The results are as follows:

Then we wondered, how did the characters 3 and 4 get intercepted?

1 "The second and third kind of difference is more this empty value of the processing (stringsplitoptions.removeemptyentries), there is a null exclusion, continue to intercept the length of the set, the default is null value is not processed

2 "

Five, fourth type

var a4 = Test. Split (newchar'2',' }, stringsplitoptions.removeemptyentries);        // The null value of the array is removed according to 2 and the character segmentation

The results are as follows:

1 "The second and fourth kind of difference is the processing of the length of the character interception, by default all intercepted

Six, the fifth kind

  var a5 = test. Split (newstring"2,""5,"4 // based on 2, and 5, the string is split, the array null value is removed, can only be divided into four characters to create a

The results are as follows:

Seven, sixth type

   var a6 = test. Split (newstring"2,""5," }, stringsplitoptions.removeemptyentries);    // based on 2, and 5, string segmentation, the array empty values are removed

The results are as follows:

1 The results of the fifth and sixth are always the reason: The truncated length is three bits

2 "fifth and sixth and the other difference is that they intercept the string, while the other is the character

How to use C#split