vector 不是模板 报错解决

目录

vector 不是模板 报错解决

嵌套vector，批量修改失败：

嵌套vector，批量修改OK：

vector 不是模板 报错解决

list和vector在命名空间std里，因此只需要在vector前加std::即可。

#include <vector>
vector<int> player;//错误写法

std::vector<int> player;//正确写法1

using namespace std;//正确写法2
vector<int> player;

嵌套vector，批量修改失败：

	std::vector<std::vector<float>> anchors = {
		{-22.6274, -11.3137, 22.6274, 11.3137, -16, -16, 16, 16, -11.3137, -22.6274, 11.3137, 22.6274 },
		{-45.2548, -22.6274, 45.2548, 22.6274, -32, -32, 32, 32, -22.6274, -45.2548, 22.6274, 45.2548 },
		{-90.5097, -45.2548, 90.5097, 45.2548, -64, -64, 64, 64, -45.2548, -90.5097, 45.2548, 90.5097 },
		{-181.019, -90.5097, 181.019, 90.5097, -128, -128, 128, 128, -90.5097, -181.019, 90.5097, 181.019 },
		{-362.039, -181.019, 362.039, 181.019, -256, -256, 256, 256, -181.019, -362.039, 181.019, 362.039 }
	};
	for (int i = 0; i < anchors.size(); i++) {

		std::vector<float> data = anchors[i];
		for (int j = 0; j < data.size(); j++) {
			data[j] /= 2.0;
		}
	}

嵌套vector，批量修改OK：

	std::vector<std::vector<float>> anchors = {
		{-22.6274, -11.3137, 22.6274, 11.3137, -16, -16, 16, 16, -11.3137, -22.6274, 11.3137, 22.6274 },
		{-45.2548, -22.6274, 45.2548, 22.6274, -32, -32, 32, 32, -22.6274, -45.2548, 22.6274, 45.2548 },
		{-90.5097, -45.2548, 90.5097, 45.2548, -64, -64, 64, 64, -45.2548, -90.5097, 45.2548, 90.5097 },
		{-181.019, -90.5097, 181.019, 90.5097, -128, -128, 128, 128, -90.5097, -181.019, 90.5097, 181.019 },
		{-362.039, -181.019, 362.039, 181.019, -256, -256, 256, 256, -181.019, -362.039, 181.019, 362.039 }
	};
	for (int i = 0; i < anchors.size(); i++) {


		for (auto& v : anchors[i])
		{
			v /= 2.0;
		}

	}