In the numerical calculation of C #, sometimes we need to calculate the absolute value of the value type of the object, at this time need to use C # class numerical Math class Abs absolute value function, the Math.Abs a total of seven absolute value function overloading types, supports decimal, double, float, int, long, sbyte, short and other types of data objects. The method of calculating an absolute value Math.Ab call format, value representatives Math.Abs (value) of the absolute value of the variable to be calculated.
(1) calculates the absolute value of type decimal decimal type
decimal, whether = 12.33;
Surely = Math.abs (whether);
(2) calculation of the absolute value variable type shaping Int
int num = -4;
num = Math.Abs (num); // result is obtained 4
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