请不要讨厌,因为我还在学习,但我需要帮助将错误归类到这个程序。
#include <iostream>
#include <string>
#include "ConCommand.h"
using namespace std;
struct Command
{
string usage;
string command;
} command;
void SayCommand(string in)
{
cout << in.substr(command.length() + 1, in.length()) << endl;
}
int main()
{
string in;
struct Command command1;
command1.usage = "say <MESSAGE>";
command1.command = "say";
while (true)
{
cout << ">>> ";
getline(cin, in);
if (in == "")
{
cerr << "Please enter a command!" << endl;
}
ConCommand(in, command1.usage, command1.command, SayCommand());
}
return 0;
}
void ConCommand(string in, string usage, string command, void (*execFunc)(string))
{
if (in.substr(0, command.length()) == command)
{
if (in.substr(command.length(), in.length()) != "")
{
//cout << in.substr(command.length() + 1, in.length()) << endl;
execFunc(in);
}
if (in.substr(command.length(), in.length()) == "")
{
cout << "Usage: " + usage << endl;
}
}
}
(这个程序的主要目的是创建一个带参数的命令行,但是我不知道如何修复的两个问题仍然存在=第15行和第36行。)
谢谢。
答案 0 :(得分:0)
我能看到的唯一错误是你需要将main移动到类的引导。 因此它看起来像这样。
#include <iostream>
#include <string>
#include "ConCommand.h"
using namespace std;
struct Command
{
string usage;
string command;
} command;
void SayCommand(string in)
{
cout << in.substr(command.length() + 1, in.length()) << endl;
}
void ConCommand(string in, string usage, string command, void (*execFunc)(string))
{
if (in.substr(0, command.length()) == command)
{
if (in.substr(command.length(), in.length()) != "")
{
//cout << in.substr(command.length() + 1, in.length()) << endl;
execFunc(in);
}
if (in.substr(command.length(), in.length()) == "")
{
cout << "Usage: " + usage << endl;
}
}
}
int main()
{
string in;
struct Command command1;
command1.usage = "say <MESSAGE>";
command1.command = "say";
while (true)
{
cout << ">>> ";
getline(cin, in);
if (in == "")
{
cerr << "Please enter a command!" << endl;
}
ConCommand(in, command1.usage, command1.command, SayCommand());
}
return 0;
}
我还建议更清楚。这样你就可以简化并告诉我们它给你的错误是什么。