可通过使用数组、字符串、大小固定的缓冲区或变量地址初始化指针。

You can initialize a pointer by using an array, a string, a fixed-size buffer, or the address of a variable.

youdao

论文对PLC程序进行了总体结构设计，并以此为指导进行了主程序和各子程序的设计，并对模拟量的编程进行了说明，另外，还对PLC程序变量地址进行了分配。

We have designed the main structure of PLC program and its sub-programs, then, introduced the programming of analogue variables and at last assigned the address of variables.

youdao

So, when you want to figure out the address & of a variable, you say ampersand.

当你想得到一个变量的地址,你可以指明。

哈佛公开课 - 计算机科学课程节选

Well, get string again is returning the address of the string the user typed in, D the address of the very first character like the letter D and storing that address in this variable s1.

好的，GetString返回的是,用户输入的字符串的地址，第一个字符的地址，比如字母,然后把这个地址存储在这个变量s1中。

哈佛公开课 - 计算机科学课程节选