class1.cs

C#开发教程 由浅入深 配有实例 是初学者的好帮手

using System;
using System.Globalization;

namespace NumParsing
{
	public class NumParsingApp
	{
		[STAThread]
		public static void Main(string[] args)
		{
			int i = int.Parse("12345");
			Console.WriteLine("i = {0}", i);

			int j = Int32.Parse("12345");
			Console.WriteLine("j = {0}", j);

			double d = Double.Parse("1.2345E+6");
			Console.WriteLine("d = {0:F}", d);

			string s = i.ToString();
			Console.WriteLine("s = {0}", s);

			Console.WriteLine();
			string t = "  -1,234,567.890  ";
//			double g = double.Parse(t);		// same thing
			double g = double.Parse(t, 
				NumberStyles.AllowLeadingSign | 
				NumberStyles.AllowDecimalPoint | 
				NumberStyles.AllowThousands |
				NumberStyles.AllowLeadingWhite | 
				NumberStyles.AllowTrailingWhite);
			Console.WriteLine("g = {0:F}", g);

			Console.WriteLine();
			string u = "