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fixbug of lambda #48

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fixbug of lambda #48

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10 changes: 5 additions & 5 deletions docs/lambda.md
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Original file line number Diff line number Diff line change
Expand Up @@ -314,7 +314,7 @@ int main() {

> {{ icon.tip }} 高层封装 API 应当可以完全通过调用底层 API 实现，提供高层 API 只是方便初级用户使用和理解。
> {{ icon.story }}
> {{ icon.story }}
例如 `libcurl` 就提供了 `curl_easy` 和 `curl_multi` 两套 API。

- `curl_multi` 提供了超详细的参数，把每个操作分拆成多步，方便用户插手细节，满足高级用户的定制化需求，但太过复杂，难以学习。
Expand Down Expand Up @@ -1629,7 +1629,7 @@ auto lambda = [b] (int a) {
```cpp
int b = 2;
std::function<void(int)> lambda = [b] (int a) {
std::function<int(int)> lambda = [b] (int a) {
return a + b;
};
```
Expand All @@ -1638,15 +1638,15 @@ std::function<void(int)> lambda = [b] (int a) {

```cpp
// vector<auto> lambda_list; // 错误：不支持的语法
vector<function<void(int)>> lambda_list; // OK
vector<function<int(int)>> lambda_list; // OK

int b = 2;
lambda_list.push_back([b] (int a) {
return a + b;
};
});
lambda_list.push_back([b] (int a) {
return a * b;
};
});

for (auto lambda: lambda_list) {
int ret = lambda(2);
Expand Down