Because 1 is an int constant by default, the output result of 1/2 is consistent with the dividend, and 0 is output (0.5 is converted into 0 after int type conversion).

It should be noted here that in C language division, the data type of the result will be converted into the data type of the dividend.

For example:

int？ Answer? =? 4;

int？ b？ =? 3;

Floating? d？ =? 5;

int？ c？ =? a/b； //? The result of variable c is 1, which was originally 4/3= 1.333 (in order to be consistent with the type of dividend A, the integer part is taken and the decimal part is discarded).

Floating? e？ =? D/A; //? The value of e is 1.25, because d is of float type.