我试图在文件加载到数组后将其打印出来的内容。我得到的第一个条目打印,但其余的都输出为0.我觉得我需要把另一个循环的地方,但我不知道哪里会最好的工作。获取从C++中的文件加载的数组的输出
这里是我的代码:
#include <iostream>
#include <fstream>
#include <cstdlib>
#include <string>
using namespace std;
struct plane //strcutre of plane data to use
{
string name;
string direction;
int id;
int coordX;
int coordY;
int height;
int speed;
};
void populate (plane planeArray[], int n)
{
string name, direction;
int id, coordX, coordY, height, speed, i, c;
ifstream infile; //declare input file stream
infile.open("plane_data.txt"); //opens file
if (!infile)
{
cout << "File cannot be reached"; //checks for invalid file path
}
for (int i = 0; i < 4; i++)
{
getline(infile, planeArray[i].name);
infile >> planeArray[i].id;
infile >> planeArray[i].coordX;
infile >> planeArray[i].coordY;
infile >> planeArray[i].height;
infile >> planeArray[i].speed;
getline(infile, planeArray[i].direction);
}
infile.close();
}
void text_display(plane planeArray[5])
{
for (int i = 0; i < 4; i++)
{
cout << planeArray[i].name << endl;
cout << planeArray[i].direction << endl;;
cout << planeArray[i].id << endl;;
cout << planeArray[i].coordX << endl;;
cout << planeArray[i].coordY << endl;;
cout << planeArray[i].height << endl;;
cout << planeArray[i].speed << endl;;
cout << endl;
}
}
int main()
{
const int N = 5;
plane planeArray[N] = {};
populate(planeArray, N);
text_display(planeArray);
}
以下是文件中包含的内容:
Airbus A380
123456
123 300
25000
400
north
Boeing-747
140
234567
30000
450
north west
Cessna-404-Titan
345678
145
29000
400
south
Sukhoi-Superjet-100
456789
120
28000
300
south west
Lockheed-Jetstar
567890
270
20000
500
east
,这里是输出我得到的,当我运行代码:
Airbus A380
123456
123
300
25000
400
north
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Process returned 0 (0x0) execution time : 0.090 s
Press any key to continue.
任何帮助非常感谢! (另外,如果你能告诉我如何摆脱围绕在打印数据的第一和最后一个条目的空行,那会是一个不错的奖金。)
干杯
在每个循环迭代之间,您应该检查该流是否处于错误状态; – Medinoc