* p = k； //This is wrong! This sentence must be preceded by a premise, which can be like this.

int *p，k，y；

p = & ampy；

* p = k； //At this time, it means that the value of variable K is assigned to the space pointed by pointer variable P, which is equivalent to y = k；;

2、int *p，k；

p = & ampk； //is equivalent to assigning the address of the variable k to the pointer variable p.