【思路】：

首先把文件（.txt）里的数据以每一个数为单位导入到vector容器里面，然后创建包含结构体的vector，按顺序以每三个为一组（代表x、y、z）存储到结构体容器中。

【数据和结果】：

【测试代码】： 

#include <iostream>
#include <fstream>
#include <string>
#include <iomanip>
#include <algorithm>
#include <vector>

struct MyPoint    //创建<点>结构体
{
	float x;
	float y;
	float z;
};
void showMyPoint(const MyPoint &mm);
using namespace std;

int main()
{
	vector <float> everypoints;//每个点为一个单位存储的数组 
	vector <MyPoint> Mypoints; //创建点的数组
	MyPoint mypoint; //实例化点
	float ch;
	ifstream fin;
	fin.clear();
	fin.open("C:\\Users\\Administrator\\Desktop\\点.txt");
	for (int i = 0; !fin.eof(); i++)
	{
		fin >> ch;
		everypoints.push_back(ch);
		fin.get();//分隔符，	
	}
	for (int ii = 0; ii<5; ii++)   //5行
	{
		float x_one = everypoints[3 * ii];
		float y_two = everypoints[3 * ii + 1];
		float z_three = everypoints[3 * ii + 2];
		mypoint.x = x_one;
		mypoint.y = y_two;
		mypoint.z = z_three;
		Mypoints.push_back(mypoint);
	}
	cout << "  x:  " << "  y:  " << " z:  " << endl;
	for_each(Mypoints.begin(), Mypoints.end(), showMyPoint); cout << endl;
	fin.close();
	return 0;
}
void showMyPoint(const MyPoint & mm)
{
	cout <<" "<< mm.x << " | " << mm.y << " | " << mm.z << endl;
}

All that really matters is you don't stop trying.

最关键的是，不要放弃尝试。