本文对指针做了比较全面的介绍。指明了c语言中指针定义时的注意事项；给出了指针的数据类型以及指针在不同运算过程中的实际含义；用实例详细说明了指针对动态数组的实现；并介绍了指针在函数调用时的作用。-This paper has done a more comprehensive indicator of the introduction. Specified in the definition of c language pointer Notes　given the data pointer and the pointer in different types of computing the actual meaning of the process　with examples for a detailed descr iption of the realization of dynamic arrays　and introduced the pointer when the function call role.