关于数组的问题，求大佬帮忙
本帖最后由 749100653 于 2021-1-17 18:20 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定义数值 int a={1,2,3,4,5,6,7,8,9,0}; 里面 &a的值是和&a的值相等的，但是a和a的值是不一样的。a和a为什么地址相同？是存储在同一个地方的吗?为什么a和a的存放地址相同但是值却不同？一个地方挤进去了两个数值？
数组名就是数组的第一个元素的地址。 qiuyouzhi 发表于 2021-1-17 18:19
数组名就是数组的第一个元素的地址。
a和a存放同一个地址？ 749100653 发表于 2021-1-17 18:21
a和a存放同一个地址？
差不多吧 qiuyouzhi 发表于 2021-1-17 18:22
差不多吧
存放在同一个地址 那意思就是 a相当于a?那为什么a的值是一个地址而a的值是第一个元素的值？ 749100653 发表于 2021-1-17 18:24
存放在同一个地址 那意思就是 a相当于a?那为什么a的值是一个地址而a的值是第一个元素的值？
a代表元素，a代表的才是地址
应该是a = &a qiuyouzhi 发表于 2021-1-17 18:25
a代表元素，a代表的才是地址
应该是a = &a
但是你不是说a和a存放在同一个地址吗 ，那a和a的值不应该是同一个数吗 749100653 发表于 2021-1-17 18:21
a和a存放同一个地址？
数组名本身就是首地址 qiuyouzhi 发表于 2021-1-17 18:25
a代表元素，a代表的才是地址
应该是a = &a
一个地址可以存放多个值？ 昨非 发表于 2021-1-17 18:28
数组名本身就是首地址
我知道 但是数组名的地址为什么等于a的地址这不就代表两个应该是同一个数吗？难道同一个地址可以存储多个数吗？ 749100653 发表于 2021-1-17 18:28
一个地址可以存放多个值？
不是，你理解的有问题
a和a的地址是相同的，存放的值也是相同的
a这种取值方法本来就是一种语法糖，方便程序员使用而发明的
*(p + i) = a qiuyouzhi 发表于 2021-1-17 18:30
不是，你理解的有问题
a和a的地址是相同的，存放的值也是相同的
a这种取值方法本来就是一种语法 ...
哦哦明白了我蒙圈了一下午 749100653 发表于 2021-1-17 18:29
我知道 但是数组名的地址为什么等于a的地址这不就代表两个应该是同一个数吗？难道同一个地址可以 ...
将数组比作火车，火车名（数组名）定义为火车头的位置（首地址），
那么问，为什么火车名不能等于火车最前端的位置（a） a 代表整个数组，同时，也是整个数组在内存中的起始地址，说它是第一个元素的地址也是对的，a , & a , & a 都是一个意思，都是数组第一个元素的地址。
前者都是指针，其数值是内存地址，而 a、a ... 就完全不同了，a 是数组的第一个元素，a 是数组的第二个元素。我们之所以要定义数组，根本目的就是要储存和访问其中的元素。
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