英文:
Function doesn't write ReadLine() input to file
问题
我正在为了好玩而制作一个助手，并决定用C#编写它。
它的工作方式如下：
用户被提示要包含多少个库
这些库被附加到List<string>
用户被询问是否要包括一个main函数
main函数正常工作，但包含不正常工作
以下是我的代码：
对于写入文件的函数：
static void CStart(string fileName, List<string> libraries, bool mainMethod)
{
string final = "";
string includes = "";
foreach (string s in libraries)
{
includes += $"#include <{s}>\n";
}
includes += "\n";
final += includes;
if (mainMethod)
{
final += "int main(int argc, const char* argv[])\n{\n\t\n}";
}
File.WriteAllText(fileName, final);
}
以及主函数：
static void Main(string[] args)
{
while (true)
{
for (int i = 0; i < 100; i++)
{
Console.WriteLine();
}
Console.WriteLine("欢迎使用编程助手！\n请选择一个选项：\n");
Console.WriteLine("1) 写入C文件\n");
Console.Write("选择：");
string ipt0 = Console.ReadLine();
if (ipt0 == "1")
{
Console.Write("请选择文件路径：");
string filePath = Console.ReadLine();
Console.Write("您想要包含多少个库：");
string ipt = Console.ReadLine();
List<string> libraries = new List<string>();
if (ipt.All(Char.IsDigit))
{
int i = int.Parse(ipt);
for (int j = 0; j < i; ++j)
{
Console.Write("写入库：");
libraries.Add(Console.ReadLine());
}
}
Console.Write("您想要生成一个主函数吗？ [Yn]: ");
string yn = Console.ReadLine();
if (yn == "n" || yn == "N")
{
CStart(filePath, libraries, false);
}
else
{
CStart(filePath, libraries, true);
}
}
}
}
文件文本如下：
int main(int argc, const char argv[])
{
}
我想要我的文件如下所示：
#include <指定的一个库>
#include <指定的一个库>
#include <指定的一个库>
...
int main(int argc, const char* argv[])
{
}
注意：... 应该被其他要求包含的库替换。
英文:
I am making a helper for fun and decided to code it in C#.
It works as follows:
> The user is prompted how many libraries they want to include
> The libraries get appended in a List<string>
> The user is asked if they would like to include a main function
> The main function works, the includes don't
Here's my code:
For the function that writes into the file:
static void CStart(string fileName, List<string> libraries, bool mainMethod)
{
string final = "";
string includes = "";
foreach (string s in libraries)
{
includes += $"#include <{s}>\n";
}
includes += "\n";
final += includes;
if (mainMethod)
{
final += "int main(int argc, const char* argv[])\n{\n\t\n}";
}
File.WriteAllText(fileName, final);
}
And the main function:
static void Main(string[] args)
{
while (true)
{
for (int i = 0; i < 100; i++)
{
Console.WriteLine();
}
Console.WriteLine("Welcome to Programming Helper!\nSelect an option:\n");
Console.WriteLine("1) Write a C file\n");
Console.Write("Choice: ");
string ipt0 = Console.ReadLine();
if (ipt0 == "1")
{
Console.Write("Please select a file path: ");
string filePath = Console.ReadLine();
Console.Write("How many libraries would you like to include: ");
string ipt = Console.ReadLine();
List<string> libraries = new List<string>();
if (ipt.All(Char.IsDigit))
{
int i = int.Parse(ipt);
for (int j = 0; j < i; ++j)
{
Console.Write("Write a library: ");
libraries.Append(Console.ReadLine());
}
}
Console.Write("Would you like to generate a main function? [Yn]: ");
string yn = Console.ReadLine();
if (yn == "n" || yn == "N")
{
CStart(filePath, libraries, false);
}
else
{
CStart(filePath, libraries, true);
}
}
}
}
The file text is:
int main(int argc, const char argv[])
{
}
I want my file to be:
#include <one of the libraries specified>
#include <one of the libraries specified>
#include <one of the libraries specified>
...
int main(int argc, const char* argv[])
{
}
Note: ... should be replaced with the other libraries demanded to include
答案1
得分: 1
你现在有一个空的 libraries 集合。请注意，Append 在
libraries.Append(Console.ReadLine());
是一个 Linq 扩展方法，它创建了一个新的 IEnumerable<string>，然后你将其 忽略。你应该使用 Add 代替：
libraries.Add(Console.ReadLine());
英文:
Well, you have an empty libraries collection. Note, that Append in
libraries.Append(Console.ReadLine());
is a Linq extension method which creates a new IEnumerable<string> which you in turn ignore. You should use Add instead:
libraries.Add(Console.ReadLine());
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