C # basic (8) -- C # data type conversion,

C # basic (8) -- C # data type conversion,

C # data types can be converted in the following ways:

1,Forced conversionNote: The char type cannot be forcibly converted to int type. If forced conversion is used, the ASCII value of the original integer is obtained.

2,Class. parse (string type variable), can only be converted to a string, any type of data can be converted to a string by using the. tostring () method, and then using the "classType. 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,Convent Conversion;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 language ^ how to use

A1 = 0x01; // 0000 0001
A2 = 0x00; // 0000 0000
A3 = 0x03; // 0000 0011
A4 = 0x02; // 0000 0010

B1 = a1 ^ a2; // 0000 0001
B2 = a1 ^ a3; // 0000 0010
B3 = a1 ^ a4; // 0000 0011

^ XOR operator. The bitwise value is 0 and the difference is 1. See the example above.

//
Examples of simple and practical problems:
====================================
======= A ======= B =========
There are two circuits on the top. The two switches are a and B respectively. The opening status is \ [1], and the closing status is/[0].
If both circuits are enabled or disabled.
If a turns on [1], B turns off [0], and circuit 1 Powers on
=====================
If a disables [0], B enables [1], and circuit 2 powers on.
====================================
In summary, the circuit fails in the and B states simultaneously [0]. When a and B are different, the power is charged [1].

C language ^ how to use

A1 = 0x01; // 0000 0001
A2 = 0x00; // 0000 0000
A3 = 0x03; // 0000 0011
A4 = 0x02; // 0000 0010

B1 = a1 ^ a2; // 0000 0001
B2 = a1 ^ a3; // 0000 0010
B3 = a1 ^ a4; // 0000 0011

^ XOR operator. The bitwise value is 0 and the difference is 1. See the example above.

//
Examples of simple and practical problems:
====================================
======= A ======= B =========
There are two circuits on the top. The two switches are a and B respectively. The opening status is \ [1], and the closing status is/[0].
If both circuits are enabled or disabled.
If a turns on [1], B turns off [0], and circuit 1 Powers on
=====================
If a disables [0], B enables [1], and circuit 2 powers on.
====================================
In summary, the circuit fails in the and B states simultaneously [0]. When a and B are different, the power is charged [1].