C # data type conversion

1. Forced conversion;

Note that char cannot be forcibly converted to int. If forced conversion is used, the ASCII value of the original integer is obtained.This method is used to remove floating point numbers unconditionally without precision..

2. usage method: type. parse (string type variable );

It can be said that this is a very practical method,You can use the. tostring () method to convert any data type into a string, and then use "type. parse (string type variable)"To the desired type.To use this method, you can only process string content, and the string content can only be within the range that can be expressed by the target type.

3. int. Tryparse (string S, out int result)

This method also converts the numeric content string to the int type, but this method is superior to int. parse, that is, it will not encounter exceptions. If the conversion is successful, true is returned. If the conversion fails, false is returned. Obviously, the last parameter is the output value. If the conversion fails, the output value is 0. If the conversion is successful, the corresponding value is output.

4. Use the convert class;

For example, convert. toint32 (string or another type );This method is used to round the floating point number.. This method is the same as forced conversion. It cannot be used to process the char type. Otherwise, ASCII code is returned.

C # data type conversion