c#字符串文本,枚举类型
本文关键字:枚举 类型 文本 字符串 | 更新日期: 2023-09-27 18:26:35
我正在阅读txt文件,我想把它分成几个部分。我的TXT文件示例:
"Part error(1) devic[3].data_type(2)"
"Escape error(3) device[10].data_type(12)"
我想实现这样一种情况,当我有第一个单词"Part"时,我希望它有枚举类型,在switch中,我希望调用一些可以与整行一起工作的函数,另一方面,当我第一个单词为"Escape"时,switch中会有另一种情况调用其他函数。我该怎么做?这是我迄今为止的代码:
class Row
{
public enum Category { Part, Escape }
public string Error{ get; set; }
public string Data_Type { get; set; }
public string Device{ get; set; }
}
public object HandleRegex(string items)
{
Row sk = new Row();
Regex r = new Regex(@"[.]");
var newStr = r.Replace(items, @" ");
switch(this.category)
{
case Category.Part:
//I want to call here function HandlePart with my line as a parameter
HandlePart(newStr);
break;
case Category.Escape:
//Here I want to call Function HandleEscape for line with "Escape" word
HandleEscape(newStr);
break;
}
}
public object HandleRegex(string items)
{
Regex r = new Regex(@"[.]");
var newStr = r.Replace(items, @" ");
try {
category = (Category) new EnumConverter(typeof(Category)).ConvertFromString(items.Split(new string[]{" "},StringSplitOptions.RemoveEmptyEntries)[0]);
}
catch {
throw new ArgumentException("items doesn't contain valid prefix");
}
switch(category)
{
case Category.Part:
HandlePart(newStr);
break;
case Category.Escape:
HandleEscape(newStr);
break;
}
}
您可以使用TryParse
:
Category outCategory;
Enum.TryParse(this.category, out outCategory)
switch(outCategory)
{
case Category.Part:
//I want to call here function HandlePart with my line as a parameter
HandlePart(newStr);
break;
case Category.Escape:
//Here I want to call Function HandleEscape for line with "Escape" word
HandleEscape(newStr);
break;
default:
// Needs to be handled
}
您可以创建Dictionary<Category, Action<string>>
,然后使用它根据类别调用代码:
static void Main(string[] args)
{
var input = @"Part error(1) devic[3].data_type(2)
Escape error(3) device[10].data_type(12)";
var functions = new Dictionary<Category, Action<string>>()
{
{ Category.Part, HandlePart},
{ Category.Escape, HandleEscape }
};
foreach (var line in input.Split(new [] {Environment.NewLine }, StringSplitOptions.None))
{
Category category;
if(Enum.TryParse<Category>(line.Substring(0, line.IndexOf(' ')), out category) && functions.ContainsKey(category))
functions[category](line);
}
}
static void HandlePart(string line)
{
Console.WriteLine("Part handler call");
}
static void HandleEscape(string line)
{
Console.WriteLine("Escape handler call");
}
以上程序输出:
Part handler call
Escape handler call
如果逐行读取文件,则可以执行
string str = file.ReadLine();
string firstWord = str.substring(0, str.IndexOf(' ')).Trim().ToLower();
现在你有了你的第一个词你可以做
switch(firstWord){
case "escape":// your code
case "Part":// your code
}