In c language, int type and double type can be converted (addition, subtraction, multiplication and division) and can be run. Is there a mistake?
Yes, there will be no mistake. The system will change all variables actually involved in the operation into double precision after calculation, as long as there is a floating point number or double precision expression, such as:
int I = 1；
float x=5，y；
y = x+I；
At runtime, the system will convert both X and I into double for calculation, and the final result will be saved as double type of Y. ..