小编wcy*_*yat的帖子

我写这个是为了生成一个随机密码：

#include <iostream>
#include <fstream>
#include <string>
#include <cstdlib>
using namespace std;

string read(string value) { //read value
    ifstream input;
    int olength;
    string line = "", output = "";
    size_t pos;
    bool a = true;
    int i = 0;
    input.open("pg_options.txt");
    if (!input.is_open()) {
        cout << "pg_options.txt missing.";
        return "error";
    }
    while (getline(input, line)) {
        pos = line.find(value);
        if (pos != string::npos) {
            while (a == true) {
                if (line[i] == '=') {
                    i++;
                    break;
                }
                else {
                    i++;
                }
            } …