C++读取文本文件(Data.txt)中的数据，并将其保存到二维数组中

0.008271420578124  0.854456431002006	0.801336578213911	0.419298139388035	0.859910080056673
0.148168165589323	0.001311301626219  0.899023038629473	0.860791205415533	0.962935554995730
0.064627833695089  0.029441506170233  0.0255747659323621	0.0620102170650206	0.523726740175469
0.072607254432586	0.685725225197179	0.804547946178628	0.197726524905090	0.886575426204672
0.410608384821223	0.499829831376401	0.773826450025988	0.568446459864227	0.914090094402607
0.225499698347063	0.837638652722978	0.782805445686074	0.043700613175250	0.440506598490008
0.259662540391377	0.525095797545405	0.176272736957892	0.772788773282351	0.520828362179958
0.819841514895154	0.022285897289309	0.472982706397996	0.948541391571323	0.387717594538515
0.182077128928792	0.988884284105640	0.750449083437161	0.758749749401662	0.171100796854719
0.214925534678133	0.455359520566324	0.527192455676292	0.115789713868215	0.873561799555105

#include
#include
#include
using namespace std;
#define row 10 //待读取文本文件中数据的行数
#define col 5 //待读取文本文件中数据的列数
void ReadTxtData(string filename ,double a[row][col]) {
	//filename为读取文件的地址；
	//a为一个二维数组，将文本文件里面的内容读取到数组a中
	ifstream readfile(filename);//打开文件夹
	double* ptr = &a[0][0];
	while (!readfile.eof())
	{
		readfile >> *ptr;//依次将数据读取
		ptr++;
	}
	readfile.close();//关闭文件夹
}
int main() {
	string filename = "F://Data.txt";//文件名
	double a[row][col] = {0.0};//用于将文本文件中的数据读取到二维数组a中
	ReadTxtData(filename,a);//调用函数
	//将结果显示
	for (int i = 0; i < row; i++) {
		for (int j = 0; j < col; j++) {
			cout<< a[i][j]<<" ";
		}
		cout << endl;
	}
	return(0);
}