2. Enter the following: (Take division as an example)
# include & ltstdio.h & gt?
Master ()
{
Floating a, b, c; ?
Printf ("Please enter dividend:");
scanf("%f ",& ampa);
Printf ("\ nPlease enter a divisor:");
scanf("%f ",& ampb); ?
c = a/b; ?
printf(" \ n % f \u% f = % f \ n ",a,b,c); ?
}?
3. Press F5 to run and get the result.
4. Floating points A, B and C; It means setting three floating-point variables, named a, b and c respectively, which are different from integer variables (int a, b, c; ) and string variables (char a, b, c; ), floating-point variables are numeric variables that can take decimals. ?
5、scanf("%f ",& ampa); This means that the number you enter is stored in a table with 6 decimal places.
6、c = a/b; It is an assignment statement, which means that the value of A divided by B is given to C. In the four operations, the addition operator is+,the subtraction is-,the multiplication is *, and the division is/.
7. If you only want to keep three decimal places, you can add .3 in the middle of %f, that is, printf ("\ n% .3f \% .3f =% .3f \ n ",a, b, c).
8. Of course, %.3f is the same as %d, and the preceding %f corresponds to the following variables one by one.