实践过程
效果
代码
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
public static string CNumToCh(string x)
{
//数字转换为中文后的数组
string[] num = new string[] { "零", "壹", "贰", "叁", "肆", "伍", "陆", "柒", "捌", "玖" };
//为数字位数建立一个位数组
string[] digit = new string[] { "", "拾", "佰", "仟" };
//为数字单位建立一个单位数组
string[] units = new string[] { "", ",万,", ",亿,", ",万亿," };
string returnValue = ""; //返回值
int finger = 0; //字符位置指针
int m = x.Length % 4; //取模
int k = 0;
if (m > 0)
k=x.Length / 4 + 1;
else
k=x.Length / 4;
//外层循环,四位一组,每组最后加上单位: ",万亿,",",亿,",",万,"
for (int i = k; i > 0; i--)
{
int L = 4;
if (i == k && m != 0)
L = m;
//得到一组四位数
string four = x.Substring(finger, L);
int l = four.Length;
//内层循环在该组中的每一位数上循环
for (int j = 0; j < l; j++)
{
//处理组中的每一位数加上所在的位
int n = Convert.ToInt32(four.Substring(j, 1));
if (n == 0)
{
if (j < l - 1&& Convert.ToInt32(four.Substring(j + 1, 1)) > 0 && !returnValue.EndsWith(num[n]))
returnValue += num[n];
}
else
{
if (!(n == 1 && (returnValue.EndsWith(num[0]) | returnValue.Length == 0) && j == l - 2))
returnValue += num[n];
returnValue += digit[l - j - 1];
}
}
finger += L;
//每组最后加上一个单位:",万,",",亿," 等
if (i < k) //如果不是最高位的一组
{
if (Convert.ToInt32(four) != 0)
//如果所有4位不全是0则加上单位",万,",",亿,"等
returnValue += units[i - 1];
}
else
{
//处理最高位的一组,最后必须加上单位
returnValue += units[i - 1];
}
}
return returnValue;
}
private void button1_Click(object sender, EventArgs e)
{
if (txtStr.Text.Trim() == "")
{
return;
}
else
{
if (txtStr.Text.Trim().Length > 16)
{
MessageBox.Show("数字金额太大！", "警告", MessageBoxButtons.OK, MessageBoxIcon.Warning);
}
else
{
if (txtStr.Text.Trim().Substring(0, 1) == "0")
{
MessageBox.Show("请正确输入金额！", "警告", MessageBoxButtons.OK, MessageBoxIcon.Warning);
}
else
{
richTextBox1.Text = CNumToCh(txtStr.Text.Trim());
}
}
}
}
private void txtStr_KeyPress(object sender, KeyPressEventArgs e)
{
if((e.KeyChar!=8&&!char.IsDigit(e.KeyChar))&&e.KeyChar!=13)
{
MessageBox.Show("请输入数字！", "警告", MessageBoxButtons.OK, MessageBoxIcon.Warning);
txtStr.Text = "";
txtStr.Focus();
}
}
}
partial class Form1
{
/// <summary>
/// Required designer variable.
/// </summary>
private System.ComponentModel.IContainer components = null;
/// <summary>
/// Clean up any resources being used.
/// </summary>
/// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
protected override void Dispose(bool disposing)
{
if (disposing && (components != null))
{
components.Dispose();
}
base.Dispose(disposing);
}
#region Windows Form Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
this.label2 = new System.Windows.Forms.Label();
this.label1 = new System.Windows.Forms.Label();
this.button1 = new System.Windows.Forms.Button();
this.richTextBox1 = new System.Windows.Forms.RichTextBox();
this.txtStr = new System.Windows.Forms.TextBox();
this.SuspendLayout();
//
// label2
//
this.label2.AutoSize = true;
this.label2.Location = new System.Drawing.Point(17, 53);
this.label2.Name = "label2";
this.label2.Size = new System.Drawing.Size(65, 12);
this.label2.TabIndex = 8;
this.label2.Text = "转换结果：";
//
// label1
//
this.label1.AutoSize = true;
this.label1.Location = new System.Drawing.Point(17, 15);
this.label1.Name = "label1";
this.label1.Size = new System.Drawing.Size(65, 12);
this.label1.TabIndex = 7;
this.label1.Text = "输入数字：";
//
// button1
//
this.button1.Location = new System.Drawing.Point(329, 11);
this.button1.Name = "button1";
this.button1.Size = new System.Drawing.Size(75, 23);
this.button1.TabIndex = 5;
this.button1.Text = "开始转换";
this.button1.UseVisualStyleBackColor = true;
this.button1.Click += new System.EventHandler(this.button1_Click);
//
// richTextBox1
//
this.richTextBox1.Location = new System.Drawing.Point(79, 53);
this.richTextBox1.Name = "richTextBox1";
this.richTextBox1.Size = new System.Drawing.Size(325, 131);
this.richTextBox1.TabIndex = 9;
this.richTextBox1.Text = "";
//
// txtStr
//
this.txtStr.Location = new System.Drawing.Point(79, 12);
this.txtStr.Name = "txtStr";
this.txtStr.Size = new System.Drawing.Size(244, 21);
this.txtStr.TabIndex = 6;
this.txtStr.KeyPress += new System.Windows.Forms.KeyPressEventHandler(this.txtStr_KeyPress);
//
// Form1
//
this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.ClientSize = new System.Drawing.Size(414, 196);
this.Controls.Add(this.richTextBox1);
this.Controls.Add(this.txtStr);
this.Controls.Add(this.label2);
this.Controls.Add(this.label1);
this.Controls.Add(this.button1);
this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedSingle;
this.MaximizeBox = false;
this.MinimizeBox = false;
this.Name = "Form1";
this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
this.Text = "数字大小写转换";
this.ResumeLayout(false);
this.PerformLayout();
}
#endregion
private System.Windows.Forms.Label label2;
private System.Windows.Forms.Label label1;
private System.Windows.Forms.Button button1;
private System.Windows.Forms.RichTextBox richTextBox1;
private System.Windows.Forms.TextBox txtStr;
}
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