malloc and calloc; dynamically and statically

C语言中malloc 和 calloc 是用来定义内存的 他们有什么区别 他们定义出来的内存位置是dynamical 还是 statical
什么样的变量定义出来的是dynamical，什么样的变量定义出来的是statical?
比如说global variables 和 local variables 和 pointers等等
我完全糊涂了。
请高人指点。

malloc and calloc; dynamically and statically 有没有人知道~CALL AND DUTY Maria and Kangkang went to call a taxi.为什么句中的call不用过去式？ malloc函数 malloc问题 call call call You must go to the school office and call the police at once. it tells the difference between making a call in chinese and one in english?是什么意思 IIS出错:The remote procedure call failed and did not execute when i am sorry . that they call me and i answered the telephone