%d: accepts integer values and represents them as signed decimal integers.

%hd: Actually, it is to output a short integer.

The following code is also relevant.

l？ : If used with d, it means a long integer; If used with f, it represents a double-precision floating-point number.

Extended data:

Other functions in C language

mathematical function

Long labs(long n) returns the absolute value of the long integer parameter n.

Double? Frexp(double value, int *eptr) returns the value of x in value=x*2n, where n is stored in eptr.

Double? ldexp(double value，int exp)； Returns the value of value*2exp.

Character library function

int？ If ch is a character (0- 127 in ASCII code), IsASCII(int ch) returns a non-zero value, otherwise it returns 0.

Baidu encyclopedia -C language function