A/b//a is directly divided by b, and the value is1;

1.0*a/b// This is a floating-point type, and 1.0*a is a conversion type.

# include & ltstdio.h & gt

# include & ltstring.h & gt

# Define N 100?

int main()

{

int a=4，b = 3；

printf("a/b=%d a/b=%f\n "，a/b，a/b)； //Can't directly control the output with the format character %f (the format character is inconsistent with the variable type, resulting in an output error)?

printf("a/b=%f\n "， 1.0 * a/b)； //Both types can be cast?

printf("a/b=%f "，(float)a/b)；

Returns 0;

}