C # code to verify the validity of GPS data,
A simple code used to verify the effectiveness of GPS message commands. Keep it.
Public static bool Verify (string gpsInfo ){
If (gpsInfo = null | "". Equals (gpsInfo ))
Return false;
Char p = gpsInfo [0];
Char c = (char) 0;
Int I = 1;
For (; I <gpsInfo. Length; I ++)
{
P = gpsInfo [I];
If (p = '*')
Break;
C ^ = p;
}
If (p! = '*')
Return false;
Return gpsInfo. Substring (++ I). Equals (string. Format ("{0: X}", (int) c ));
}
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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].