CodePudding user response:

C: sure,
A. because wild pointer, the result is undefined.
B is also the reason of wild pointer, the result is undefined.
D is crossing the line, because s=p; After that, s pointer points to the first address, e * s=1; So 1 assignment is corresponding to data type int, and e is char types, only can say 1 byte, so the result is undefined, because * s=1; Crossing the line

CodePudding user response:

The first problem of the variable I type is not the same as the type of p,
The second question the answer is 6, pay attention to the two places, variables are global variables, b of a local variable in a mian function is a value for the incoming address, so be func function changed,

CodePudding user response:

The function of the second question, the answer B, func is on the passed parameter values, the main function of the add 2 at a time, so the answer is 6.
1, D, do not specify a [0] [0] value, so the result is pending, but unable to display the results in the vs2019,