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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