c++中fstream是什么意思_汽车配置参数图文详解
C++017-C++文件读写应用
ifstream infile(file2, ios::in); while (getline(infile, s)) cout << s << endl; infile.close(); } void search1(const char* fnd_file,const char*str) { string s; ifstream infile(fnd_file, ios::in); int linenum = 0; int count = 0; while (getline(infile, s))...
#include<sstream> using namespace std; int main(){ ifstream in1("in.txt"),in2("in2.txt"); if(!in1||!in2){ cout<<"wrong"<<endl; return 0; } unordered_map<string,string> transword; for(string key,value;in1>>key && getline(in1,value);){ if (value.size()>1) transword[...
void createArray(player p[], std::ifstream &input){ for(int i =0;i < 10; i++){ std::getline(input, p[i].name, ' '); ... } } 但是,std::getline()不能将输入读入int,只能读入std::string。如果您想从文本输入中读取格式化整数,则必须使用std::string或等效的std::stoi()进行转换,例...
using namespace std; int main() { ifstream input("testtext.txt"); ofstream output("copy.txt"); string s; while (getline(input,s)) { output << s << endl; } return 0; } [root@iZf8zhsbt6gz03s8mn3ey4Z week9]# g++ ./test1.cpp ...