form1.cs

一个能将阿拉伯数字转换成汉字的程序

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;

namespace Money
{
	/// <summary>
	/// Form1 的摘要说明。
	/// </summary>
	public class Money : System.Windows.Forms.Form
	{
		private System.Windows.Forms.TextBox textBox1;
		private System.Windows.Forms.TextBox textBox2;
		private System.Windows.Forms.Button button1;
		private System.Windows.Forms.Label label1;
		private System.Windows.Forms.Label label2;
		private System.Windows.Forms.ContextMenu contextMenu1;
		private System.Windows.Forms.MenuItem menuItem1;
		private System.Windows.Forms.MenuItem menuItem2;
		/// <summary>
		/// 必需的设计器变量。
		/// </summary>
		private System.ComponentModel.Container components = null;

		public Money()
		{
			//
			// Windows 窗体设计器支持所必需的
			//
			InitializeComponent();

			//
			// TODO: 在 InitializeComponent 调用后添加任何构造函数代码
			//
		}

		/// <summary>
		/// 清理所有正在使用的资源。
		/// </summary>
		protected override void Dispose( bool disposing )
		{
			if( disposing )
			{
				if (components != null) 
				{
					components.Dispose();
				}
			}
			base.Dispose( disposing );
		}

		#region Windows 窗体设计器生成的代码
		/// <summary>
		/// 设计器支持所需的方法 - 不要使用代码编辑器修改
		/// 此方法的内容。
		/// </summary>
		private void InitializeComponent()
		{
			this.textBox1 = new System.Windows.Forms.TextBox();
			this.textBox2 = new System.Windows.Forms.TextBox();
			this.button1 = new System.Windows.Forms.Button();
			this.label1 = new System.Windows.Forms.Label();
			this.label2 = new System.Windows.Forms.Label();
			this.contextMenu1 = new System.Windows.Forms.ContextMenu();
			this.menuItem1 = new System.Windows.Forms.MenuItem();
			this.menuItem2 = new System.Windows.Forms.MenuItem();
			this.SuspendLayout();
			// 
			// textBox1
			// 
			this.textBox1.Location = new System.Drawing.Point(24, 56);
			this.textBox1.MaxLength = 10;
			this.textBox1.Name = "textBox1";
			this.textBox1.Size = new System.Drawing.Size(264, 21);
			this.textBox1.TabIndex = 0;
			this.textBox1.Text = "";
			// 
			// textBox2
			// 
			this.textBox2.Location = new System.Drawing.Point(24, 112);
			this.textBox2.Multiline = true;
			this.textBox2.Name = "textBox2";
			this.textBox2.Size = new System.Drawing.Size(264, 72);
			this.textBox2.TabIndex = 1;
			this.textBox2.Text = "";
			// 
			// button1
			// 
			this.button1.Location = new System.Drawing.Point(24, 208);
			this.button1.Name = "button1";
			this.button1.Size = new System.Drawing.Size(112, 32);
			this.button1.TabIndex = 2;
			this.button1.Text = "转换";
			this.button1.Click += new System.EventHandler(this.button1_Click);
			// 
			// label1
			// 
			this.label1.Location = new System.Drawing.Point(24, 24);
			this.label1.Name = "label1";
			this.label1.Size = new System.Drawing.Size(208, 16);
			this.label1.TabIndex = 3;
			this.label1.Text = "请输入数字:";
			// 
			// label2
			// 
			this.label2.Location = new System.Drawing.Point(24, 88);
			this.label2.Name = "label2";
			this.label2.Size = new System.Drawing.Size(208, 16);
			this.label2.TabIndex = 4;
			this.label2.Text = "转换为大写中文:";
			// 
			// contextMenu1
			// 
			this.contextMenu1.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
																						 this.menuItem1,
																						 this.menuItem2});
			// 
			// menuItem1
			// 
			this.menuItem1.Index = 0;
			this.menuItem1.Text = "关于";
			this.menuItem1.Click += new System.EventHandler(this.menuItem1_Click);
			// 
			// menuItem2
			// 
			this.menuItem2.Index = 1;
			this.menuItem2.Text = "退出";
			this.menuItem2.Click += new System.EventHandler(this.menuItem2_Click);
			// 
			// Money
			// 
			this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
			this.ClientSize = new System.Drawing.Size(328, 266);
			this.ContextMenu = this.contextMenu1;
			this.Controls.Add(this.label2);
			this.Controls.Add(this.label1);
			this.Controls.Add(this.button1);
			this.Controls.Add(this.textBox2);
			this.Controls.Add(this.textBox1);
			this.Name = "Money";
			this.Text = "数字转换为大写中文";
			this.ResumeLayout(false);

		}
		#endregion

		/// <summary>
		/// 应用程序的主入口点。
		/// </summary>
		[STAThread]
		static void Main() 
		{
			Application.Run(new Money());
		}



		private char 转换数字(char x)
		{
			string stringChnNames="零一二三四五六七八九";
			string stringNumNames="0123456789";
			return stringChnNames[stringNumNames.IndexOf(x)];
		}


		private string 转换万以下整数(string x)
		{
			string[] stringArrayLevelNames=new string[4] {"","十","百","千"};
			string ret="";
			int i;
			for (i=x.Length-1;i>=0;i--)
				if (x[i]=='0')
					ret=转换数字(x[i])+ret;
				else
					ret=转换数字(x[i])+stringArrayLevelNames[x.Length-1-i]+ret;
			while ((i=ret.IndexOf("零零"))!=-1)
				ret=ret.Remove(i,1);
			if (ret[ret.Length-1]=='零' && ret.Length>1)
				ret=ret.Remove(ret.Length-1,1);
			if (ret.Length>=2 && ret.Substring(0,2)=="一十")
				ret=ret.Remove(0,1);
			return ret;
		}


		private string 转换整数(string x)
		{
			int len=x.Length;
			string ret,temp;
			if (len<=4)
				ret=转换万以下整数(x);
			else if (len<=8)
			{
				ret=转换万以下整数(x.Substring(0,len-4))+"万";
				temp=转换万以下整数(x.Substring(len-4,4));
				if (temp.IndexOf("千")==-1 && temp!="")
					ret+="零"+temp;
				else
					ret+=temp;
			}
			else
			{
				ret=转换万以下整数(x.Substring(0,len-8))+"亿";
				temp=转换万以下整数(x.Substring(len-8,4));
				if (temp.IndexOf("千")==-1 && temp!="")
					ret+="零"+temp;
				else
					ret+=temp;
				ret+="万";
				temp=转换万以下整数(x.Substring(len-4,4));
				if (temp.IndexOf("千")==-1 && temp!="")
					ret+="零"+temp;
				else
					ret+=temp;
			}
			int i;
			if ((i=ret.IndexOf("零万"))!=-1)
				ret=ret.Remove(i+1,1);
			while ((i=ret.IndexOf("零零"))!=-1)
				ret=ret.Remove(i,1);
			if (ret[ret.Length-1]=='零' && ret.Length>1)
				ret=ret.Remove(ret.Length-1,1);
			return ret;
		}


		private string 转换小数(string x)
		{
			string ret="";
			for (int i=0;i<x.Length;i++)
				ret+=转换数字(x[i]);
			return ret;
		}


		public string NumToChn(string x)
		{
			if (x.Length==0)
				return "";
			string ret="";
			if (x[0]=='-')
			{
				ret="负";
				x=x.Remove(0,1);
			}
			if (x[0].ToString()==".")
				x="0"+x;
			if (x[x.Length-1].ToString()==".")
				x=x.Remove(x.Length-1,1);
			if (x.IndexOf(".")>-1)
				ret+=转换整数(x.Substring(0,x.IndexOf(".")))+"点"+转换小数(x.Substring(x.IndexOf(".")+1));
			else
				ret+=转换整数(x);
			return ret;
		}

		private void button1_Click(object sender, System.EventArgs e)
		{
			if(textBox1.Text=="")
			{
				MessageBox.Show(this,"       请输入阿拉伯数字!       ");
			}
			
			textBox2.Text=NumToChn(  textBox1.Text );
		}

		private void menuItem1_Click(object sender, System.EventArgs e)
		{
			MessageBox.Show(this,"sunboy!!! ");
		
		}

		private void menuItem2_Click(object sender, System.EventArgs e)
		{
			this.Close();
		}


























		

	}
}