C/C++读写csv文件

csv文件其实就是文本文件，每行字段用逗号分隔。代码#include#include#include#include#includeusing namespace std;int main(){// 写文件ofstream outFile;outFile.open("data.csv", ios::out); // 打开模式可省略out

踏莎行hyx

82269人浏览 · 2017-03-21 18:39:15

踏莎行hyx · 2017-03-21 18:39:15 发布

csv文件其实就是文本文件，每行字段用逗号分隔。

代码

#include <iostream>
#include <string>
#include <vector>
#include <fstream>
#include <sstream>

using namespace std;


int main()
{
	// 写文件
	ofstream outFile;
	outFile.open("data.csv", ios::out); // 打开模式可省略
	outFile << "name" << ',' << "age" << ',' << "hobby" << endl;
	outFile << "Mike" << ',' << 18 << ',' << "paiting" << endl;
	outFile << "Tom" << ',' << 25 << ',' << "football" << endl;
	outFile << "Jack" << ',' << 21 << ',' << "music" << endl;
	outFile.close();

	// 读文件
	ifstream inFile("data.csv", ios::in);
	string lineStr;
	vector<vector<string>> strArray;
	while (getline(inFile, lineStr))
	{
		// 打印整行字符串
		cout << lineStr << endl;
		// 存成二维表结构
		stringstream ss(lineStr);
		string str;
		vector<string> lineArray;
		// 按照逗号分隔
		while (getline(ss, str, ','))
			lineArray.push_back(str);
		strArray.push_back(lineArray);
	}
	
	getchar();
	return 0;
}