#include <iostream>using namespace std;// 控制臺傳的參數： "./a.out -f /home/in.txt -o /home/out.txt"int main(int argc, char* argv[]) { // argv[0]="./a.out"; // argv[1]="-f"; // argv[2]="/home/in.txt"; // argv[3]="-o"; // argv[4]="/home/out.txt"; // argc=5; if (argc < 5) { // Check the value of argc. If not enough parameters have been passed, inform user and exit. std::cout << "Usage is -in <infile> -out <outdir>/n"; // Inform the user of how to use the PRogram std::cin.get(); return 0; } else { // if we got enough parameters... char* myFile,* myPath, *myOutPath; std::cout << argv[0]<<endl; for (int i = 1; i < argc; i++,i++) { /* We will iterate over argv[] to get the parameters stored inside. * Note that we're starting on 1 because we don't need to know the * path of the program, which is stored in argv[0] */ cout<<argv[i]<<" "; if (string(argv[i]) == "-f") { // We know the next argument *should* be the filename: myFile = argv[i + 1]; } else if (string(argv[i]) == "-p") { myPath = argv[i + 1]; } else if (string(argv[i]) == "-o") { myOutPath = argv[i + 1]; } else { std::cout << "Not enough or invalid arguments, please try again./n"; return 0; } std::cout << argv[i+1] <<endl; } std::cin.get(); return 0; }}
