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book: typo fixes (#248)

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ALAN
2022-08-20 15:24:36 +08:00
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parent 2e9eed9ecc
commit 237c990510
2 changed files with 4 additions and 4 deletions
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book/zh-cn/02-usability.md
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@@ -314,8 +314,8 @@ C++11 引入了 `auto` 和 `decltype` 这两个关键字实现了类型推导，
```cpp
// 在 C++11 之前
// 由于 cbegin() 将返回 vector<int>::const_iterator
// 所以 itr 也应该是 vector<int>::const_iterator 类型
for(vector<int>::const_iterator it = vec.cbegin(); itr != vec.cend(); ++it)
// 所以 it 也应该是 vector<int>::const_iterator 类型
for(vector<int>::const_iterator it = vec.cbegin(); it != vec.cend(); ++it)
```
而有了 `auto` 之后可以：