比如输入一个字符串24度37’45″，如何在C#中分别获取度，分，秒？还有比如输入的不标准呢？比如24度，或者37’45″，或者24度45″这时怎么获取？获取同时能不能判断度数大于0小于360，分数大于0小于60？我不动正则表达式，C#也是菜鸟，请各位大神写详细点儿，谢谢大家啦！
—- 5分
(([1-9]\d?|[12]\d{2}|3[1-5]\d)度)?(([1-9]|[1-5]\d)’)?(([1-9]|[1-5]\d)”)?
—- 50分
比较笨的实现：自己再优化
string str = "37'45\"";
int du = 0, fen = 0, miao = 0;
if (str.Contains("度"))
{
string[] arrStr = str.Split(new string[] { "度" }, StringSplitOptions.None);
int.TryParse(arrStr[0], out du);
str = arrStr[1];
}
if (str.Contains("'"))
{
string[] arrStr = str.Split(new string[] { "'" }, StringSplitOptions.None);
int.TryParse(arrStr[0], out fen);
str = arrStr[1];
}
if (str.Contains("\""))
{
string[] arrStr = str.Split(new string[] { "\"" }, StringSplitOptions.None);
int.TryParse(arrStr[0], out miao);
str = arrStr[1];
}
MessageBox.Show(string.Format("{0}度{1}分{2}秒", du, fen, miao));
---- 10分
void Main()
{
var list=new string[]{"4度37'45\"",
"24度",
"37'45\"",
"24度45\""};
var reg=new Regex("(([1-9]\\d?|[12]\\d{2}|3[1-5]\\d)度)?(([1-9]|[1-5]\\d)')?(([1-9]|[1-5]\\d)\")?");
foreach(var str in list)
{
Match m =reg.Match(str);
Console.WriteLine("{0}\t{1}\t{2}",m.Groups[1].Value,m.Groups[3].Value,m.Groups[5].Value);
}
}
—- 5分
using System;
using System.Text.RegularExpressions;
namespace ConsoleApplication14
{
internal class Program
{
private static void Main(string[] args)
{
string[] tests =
{
"24度37'45\"",
"37'45\"",
"37'45\"",
"361度37'45\"",
"20度99'45\"",
"20度19'88\"",
"20.88度19'20\""
};
foreach (string rawInput in tests)
{
Console.WriteLine("Processing: {0}", rawInput);
try
{
Tuple<double, double, double> parsed = ParseRawString(rawInput);
Console.WriteLine(parsed.Item1);
Console.WriteLine(parsed.Item2);
Console.WriteLine(parsed.Item3);
}
catch (ArgumentException ex)
{
Console.WriteLine(ex.Message);
}
Console.WriteLine();
}
Console.ReadLine();
}
/// <summary>
/// Parse a raw string and extract the angle related info out.
/// </summary>
/// <param name="input">
/// </param>
/// <exception cref="ArgumentNullException">Thrown if invalid input is received</exception>
/// <returns>
/// A tuple with degree as the first value, arc as the second value and second as the last value.
/// </returns>
public static Tuple<double, double, double> ParseRawString(string input)
{
if (string.IsNullOrEmpty(input))
{
throw new ArgumentNullException("Null or empty input is not allowed.");
}
string floatNumberRegex = "([+-]?\\d+)(\\.\\d+)?";
var regex = new Regex(string.Format("^(?<degree>({0}度)?)(?<arc>({0}')?)(?<second>({0}\")?)$", floatNumberRegex));
Match match = regex.Match(input);
if (!match.Success)
{
return null;
}
Func<string, double, double, double> sanityCheck = (groupName, min, max) =>
{
Group g = match.Groups[groupName];
double result;
if (g == null || g.Length <= 1)
{
return 0;
}
if (!double.TryParse(g.Value.Substring(0, g.Value.Length - 1), out result))
{
throw new ArgumentException(string.Format("The value provided for {0} is not a number: {1}", groupName, g.Value));
}
if (!(result >= min && result <= max))
{
throw new ArgumentException(string.Format("The value provided for {0} is out of range([{1},{2}]): {3}", groupName, min, max, g.Value));
}
return result;
};
return new Tuple<double, double, double>(sanityCheck("degree", 0, 360), sanityCheck("arc", 0, 60), sanityCheck("second", 0, 60));
}
}
}
—-
给二楼是因为他的我能看懂，你们的看不懂，也没说明，不给我解释啊
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