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Fix typo in chapter 2 #249

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Merged
merged 2 commits into from
Sep 8, 2022
Merged

Fix typo in chapter 2 #249

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01148ed
Fix typo
stephen9357 Sep 8, 2022
3a76d0e
Fix typo
stephen9357 Sep 8, 2022
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Fix typo
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@stephen9357
stephen9357 authored Sep 8, 2022
commit 01148eddac37c1a759f8274f5eac35f5f3f5c0e6
2 changes: 1 addition & 1 deletion book/zh-cn/02-usability.md
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Expand Up @@ -182,7 +182,7 @@ int main() {
}
```

在上面的代码中，我们可以看到 `itr` 这一变量是定义在整个 `main()` 的作用域内的，这导致当我们需要再次遍历整个 `std::vectors` 时，需要重新命名另一个变量。C++17 消除了这一限制，使得我们可以在 `if`（或 `switch`）中完成这一操作：
在上面的代码中，我们可以看到 `itr` 这一变量是定义在整个 `main()` 的作用域内的，这导致当我们需要再次遍历整个 `std::vector` 时，需要重新命名另一个变量。C++17 消除了这一限制，使得我们可以在 `if`（或 `switch`）中完成这一操作：

```cpp
// 将临时变量放到 if 语句内
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