Asp.net String. Substring String truncation Function

String. substring (int startindex, int length)

Note:
Returns a substring starting from startindex to ending, or returns a substring starting from startindex with a length

Part of the string to be truncated. Parameter 1 is the start number of digits on the left, and parameter 2 is the number of digits to be truncated.

For example:

String s1 = str. substring (0, 2 );

Note: parameter 2 is longer than the total length of the actual str string. An error is returned!

For example: 1, 2, 3, 4. Remove the last comma from the character c.

String aa = ", 1, 2, 3, 4 ,";
Aa = aa. substring (0, aa. length-1); // remove the last comma

Aa = aa. substring (1); // remove the first word.