c++vectorfind
时间: 2023-10-17 15:31:13 浏览: 87
在C++中,vector的find函数用于在一个vector容器中查找指定的元素。通过使用algorithm头文件中的find函数,可以对vector进行查找操作。下面是一个使用find函数在vector中查找元素的示例代码:
```cpp
#include <iostream>
#include <vector>
#include <algorithm>
int main() {
std::vector<int> vec = {1, 2, 3, 4, 5};
std::vector<int>::iterator it = std::find(vec.begin(), vec.end(), 3);
if (it != vec.end()) {
std::cout << "找到了元素" << std::endl;
} else {
std::cout << "未找到元素" << std::endl;
}
return 0;
}
```
在上述示例代码中,我们定义了一个名为vec的vector容器,并使用find函数在其中查找元素3。如果找到了元素,就会输出"找到了元素",否则输出"未找到元素"。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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