CS_learn/LearnRustEasy
1
0
Fork 0
mirror of https://github.com/RustyCab/LearnRustEasy.git synced 2026-02-04 10:43:22 +08:00
Code Issues Packages Projects Releases Wiki Activity

Update chapter_3_10_2.md

Browse Source
This commit is contained in:
令狐一冲
2023-05-18 08:58:53 +08:00
committed by GitHub
parent b377b80e14
commit f66028c987
1 changed files with 1 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
src/chapter_3/chapter_3_10_2.md
View File

@@ -111,7 +111,7 @@ fn main() {
```
在上面的代码中，vehicle1和vehicle1都是Vehicle trait对象的引用；对于vehicle1来说，trait对象的具体类型是Car；对于vehicle2来说，trait对象的具体类型是Truck。上面代码对应的内存布局如下：
![注释](../../assets/13.png)
![注释](../../assets/14.png)
变量car和变量truck分别是Car类型和Truck类型，存储在栈上；vehicle1和vehicle2是Vehicle trait对象的引用，具有两个指针，其中指针ptr指向具体类型的实例，vptr指向虚函数表；虚函数表存储在只读数据区。