can not open file positions.txt!"<<std::endl;returnvector<string>();//调用vector的默认构造函数...
这里把第1列的字符串保存在vector中,其余数据保存在二维数组data中,C++实现代码如下: #include <fstream> #include <string> #include "vector" #include <iostream> usingnamespacestd; //txt文本的路径 #define readDataPath "D:\\MyGitPro\\imageData\\data.txt" #define txtRows 3//txt文本行数 #define...
string num = "123"):name(n),number(num) {} void showPerson(); public: string name; string number; }; vector<person*> dataRead(vector<person*> & data) { FILE* fp = NULL; fp = fopen("data.txt","rb"); person* temp; if(fp == ...
//采用C模式对Txt进行读取 void TxtRead_Cmode() { FILE * fid = fopen("txt_out.txt","r"); if(fid == NULL) { printf("打开%s失败","txt_out.txt"); return; } vector<int> index; vector<double> x_pos; vector<double> y_pos; int mode = 1; printf("mode为1,按字符读入并输出;mod...
例:从hello.txt文件中读取数据并写入到out.txt中 [cpp]view plaincopy 1.#include "stdafx.h" 2.#include <vector> 3.#include <string> 4.#include <fstream> 5.#include <iostream> 6.usingnamespacestd; 7.int_tmain(intargc, _TCHAR* argv[]) 8.{ 9.ifstream myfile("E:\\hello.txt"); 10...
my_file是一个容器vector变量,其中将会存储我们需要筛选出来的特定文件。need_extension是我们需要筛选出来...
include<iostream> using namespace std;int mat[101][101];int main(){ int n,m;//行,列...int i,j;freopen("D:\\in.txt","r",stdin);//读文件...cin>>n>>m;//读入矩阵行数,列数...for(i=0;i<n;i++)for(j=0;j<n;j++)cin>>mat[i][j];return 0;} ...
在视频中,作者让学生直接去 github 上面复制 vector 和 buffer 代码以作应用,这样可以省下时间 准备工作 将下载好的 vector 和 buffer 放入 helpers 文件夹里面 compile ├── CMakeLists.txt ├── main.c └── scripts ├── CMakeLists.txt └── helpers ├── buffer.c ├── buffer.h ├...
2. 读取文本文件//采用C模式对Txt进行读取 FILE * fid = fopen("txt_out.txt","r"); if(fid == NULL) { printf("打开%s失败","txt_out.txt"); return; } //按字符读取 if(mode == 1) { //按字符读入并直接输出 char ch; //读取的字符,判断准则为ch不等于结束符EOF(end of file) while...
vector<string> vec_str;ifstream infile("1.txt");if (!infile.is_open()){ return -1;} string line;size_t curpos,pos,prepos;while(getline(infile,line)){ pos = line.find_first_of(":");if(pos == string::npos){ continue;} else { line = line.substr(pos+1);} if (...