form1.cs

用C#做的计算器

			// 
			this.button4.Font = new System.Drawing.Font("宋体", 10.5F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
			this.button4.ForeColor = System.Drawing.SystemColors.ControlLightLight;
			this.button4.Location = new System.Drawing.Point(176, 48);
			this.button4.Name = "button4";
			this.button4.Size = new System.Drawing.Size(40, 32);
			this.button4.TabIndex = 9;
			this.button4.Text = "/";
			this.button4.Click += new System.EventHandler(this.button4_Click);
			// 
			// button5
			// 
			this.button5.Font = new System.Drawing.Font("宋体", 10.5F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
			this.button5.ForeColor = System.Drawing.SystemColors.ControlLightLight;
			this.button5.Location = new System.Drawing.Point(8, 96);
			this.button5.Name = "button5";
			this.button5.Size = new System.Drawing.Size(40, 32);
			this.button5.TabIndex = 10;
			this.button5.Text = "4";
			this.button5.Click += new System.EventHandler(this.button5_Click);
			// 
			// button6
			// 
			this.button6.Font = new System.Drawing.Font("宋体", 10.5F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
			this.button6.ForeColor = System.Drawing.SystemColors.ControlLightLight;
			this.button6.Location = new System.Drawing.Point(64, 96);
			this.button6.Name = "button6";
			this.button6.Size = new System.Drawing.Size(40, 32);
			this.button6.TabIndex = 11;
			this.button6.Text = "5";
			this.button6.Click += new System.EventHandler(this.button6_Click);
			// 
			// button7
			// 
			this.button7.Font = new System.Drawing.Font("宋体", 10.5F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
			this.button7.ForeColor = System.Drawing.SystemColors.ControlLightLight;
			this.button7.Location = new System.Drawing.Point(120, 96);
			this.button7.Name = "button7";
			this.button7.Size = new System.Drawing.Size(40, 32);
			this.button7.TabIndex = 12;
			this.button7.Text = "6";
			this.button7.Click += new System.EventHandler(this.button7_Click);
			// 
			// button8
			// 
			this.button8.Font = new System.Drawing.Font("宋体", 10.5F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
			this.button8.ForeColor = System.Drawing.SystemColors.ControlLightLight;
			this.button8.Location = new System.Drawing.Point(176, 96);
			this.button8.Name = "button8";
			this.button8.Size = new System.Drawing.Size(40, 32);
			this.button8.TabIndex = 13;
			this.button8.Text = "*";
			this.button8.Click += new System.EventHandler(this.button8_Click);
			// 
			// button9
			// 
			this.button9.Font = new System.Drawing.Font("宋体", 10.5F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
			this.button9.ForeColor = System.Drawing.SystemColors.ControlLightLight;
			this.button9.Location = new System.Drawing.Point(8, 144);
			this.button9.Name = "button9";
			this.button9.Size = new System.Drawing.Size(40, 32);
			this.button9.TabIndex = 14;
			this.button9.Text = "1";
			this.button9.Click += new System.EventHandler(this.button9_Click);
			// 
			// button10
			// 
			this.button10.Font = new System.Drawing.Font("宋体", 10.5F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
			this.button10.ForeColor = System.Drawing.SystemColors.ControlLightLight;
			this.button10.Location = new System.Drawing.Point(64, 144);
			this.button10.Name = "button10";
			this.button10.Size = new System.Drawing.Size(40, 32);
			this.button10.TabIndex = 15;
			this.button10.Text = "2";
			this.button10.Click += new System.EventHandler(this.button10_Click);
			// 
			// button11
			// 
			this.button11.Font = new System.Drawing.Font("宋体", 10.5F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
			this.button11.ForeColor = System.Drawing.SystemColors.ControlLightLight;
			this.button11.Location = new System.Drawing.Point(120, 144);
			this.button11.Name = "button11";
			this.button11.Size = new System.Drawing.Size(40, 32);
			this.button11.TabIndex = 16;
			this.button11.Text = "3";
			this.button11.Click += new System.EventHandler(this.button11_Click);
			// 
			// button12
			// 
			this.button12.Font = new System.Drawing.Font("宋体", 10.5F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
			this.button12.ForeColor = System.Drawing.SystemColors.ControlLightLight;
			this.button12.Location = new System.Drawing.Point(176, 144);
			this.button12.Name = "button12";
			this.button12.Size = new System.Drawing.Size(40, 32);
			this.button12.TabIndex = 17;
			this.button12.Text = "-";
			this.button12.Click += new System.EventHandler(this.button12_Click);
			// 
			// button13
			// 
			this.button13.Font = new System.Drawing.Font("宋体", 10.5F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
			this.button13.ForeColor = System.Drawing.SystemColors.ControlLightLight;
			this.button13.Location = new System.Drawing.Point(8, 192);
			this.button13.Name = "button13";
			this.button13.Size = new System.Drawing.Size(40, 32);
			this.button13.TabIndex = 18;
			this.button13.Text = "0";
			this.button13.Click += new System.EventHandler(this.button13_Click);
			// 
			// button14
			// 
			this.button14.Font = new System.Drawing.Font("宋体", 10.5F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
			this.button14.ForeColor = System.Drawing.SystemColors.ControlLightLight;
			this.button14.Location = new System.Drawing.Point(64, 192);
			this.button14.Name = "button14";
			this.button14.Size = new System.Drawing.Size(40, 32);
			this.button14.TabIndex = 19;
			this.button14.Text = ".";
			this.button14.Click += new System.EventHandler(this.button14_Click);
			// 
			// button15
			// 
			this.button15.Font = new System.Drawing.Font("宋体", 10.5F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
			this.button15.ForeColor = System.Drawing.SystemColors.ControlLightLight;
			this.button15.Location = new System.Drawing.Point(120, 192);
			this.button15.Name = "button15";
			this.button15.Size = new System.Drawing.Size(40, 32);
			this.button15.TabIndex = 20;
			this.button15.Text = "=";
			this.button15.Click += new System.EventHandler(this.button15_Click);
			// 
			// button16
			// 
			this.button16.Font = new System.Drawing.Font("宋体", 10.5F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
			this.button16.ForeColor = System.Drawing.SystemColors.ControlLightLight;
			this.button16.Location = new System.Drawing.Point(176, 192);
			this.button16.Name = "button16";
			this.button16.Size = new System.Drawing.Size(40, 32);
			this.button16.TabIndex = 21;
			this.button16.Text = "+";
			this.button16.Click += new System.EventHandler(this.button16_Click);
			// 
			// button17
			// 
			this.button17.Font = new System.Drawing.Font("宋体", 10.5F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
			this.button17.ForeColor = System.Drawing.SystemColors.ControlLightLight;
			this.button17.Location = new System.Drawing.Point(8, 240);
			this.button17.Name = "button17";
			this.button17.Size = new System.Drawing.Size(208, 24);
			this.button17.TabIndex = 22;
			this.button17.Text = "Clear";
			this.button17.Click += new System.EventHandler(this.button17_Click);
			// 
			// Form1
			// 
			this.AutoScaleBaseSize = new System.Drawing.Size(8, 16);
			this.BackColor = System.Drawing.SystemColors.ControlText;
			this.ClientSize = new System.Drawing.Size(224, 277);
			this.Controls.Add(this.button17);
			this.Controls.Add(this.button16);
			this.Controls.Add(this.button15);
			this.Controls.Add(this.button14);
			this.Controls.Add(this.button13);
			this.Controls.Add(this.button12);
			this.Controls.Add(this.button11);
			this.Controls.Add(this.button10);
			this.Controls.Add(this.button9);
			this.Controls.Add(this.button8);
			this.Controls.Add(this.button7);
			this.Controls.Add(this.button6);
			this.Controls.Add(this.button5);
			this.Controls.Add(this.button4);
			this.Controls.Add(this.button3);
			this.Controls.Add(this.button2);
			this.Controls.Add(this.button1);
			this.Controls.Add(this.Screen);
			this.Font = new System.Drawing.Font("宋体", 10.5F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
			this.ForeColor = System.Drawing.SystemColors.ControlLightLight;
			this.MaximizeBox = false;
			this.Name = "Form1";
			this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
			this.Text = "计算器";
			this.ResumeLayout(false);

		}
		#endregion

		/// <summary>
		/// 应用程序的主入口点。
		/// </summary>
		[STAThread]
		static void Main() 
		{
			Application.Run(new Form1());
		}

	//---------------------------- 0～9 数字键 -----------------------------
		private void button13_Click(object sender, System.EventArgs e)
		{	// 0键
			if( Screen.Text != "0" && Screen.Text.Length < 15 )
				TypeInNumber("0");
		}

		private void button9_Click(object sender, System.EventArgs e)
		{
			TypeInNumber("1");
		}

		private void button10_Click(object sender, System.EventArgs e)
		{
			TypeInNumber("2");
		}

		private void button11_Click(object sender, System.EventArgs e)
		{
			TypeInNumber("3");
		}

		private void button5_Click(object sender, System.EventArgs e)
		{
			TypeInNumber("4");
		}

		private void button6_Click(object sender, System.EventArgs e)
		{
			TypeInNumber("5");
		}

		private void button7_Click(object sender, System.EventArgs e)
		{
			TypeInNumber("6");
		}

		private void button1_Click(object sender, System.EventArgs e)
		{
			TypeInNumber("7");
		}

		private void button2_Click(object sender, System.EventArgs e)
		{
			TypeInNumber("8");
		}

		private void button3_Click(object sender, System.EventArgs e)
		{
			TypeInNumber("9");
		}
	//======================================================================

		private void button14_Click(object sender, System.EventArgs e)
		{	// 小数点
			foreach ( char point in Screen.Text )	//遍历检查当前是否为小数。但一个bug是不能在其他运算得出结果后直接按“.”进行“0.”输入
			{
				if( point == '.' )
				{
					IsReal = true;
					break;
				}
				else 
				{
					IsReal = false;
				}
			}
			if( !IsReal )
			{
				if( Screen.Text != "0" )
				{
					TypeInNumber(".");
				}
				else
				{
					Screen.Text = "";
					TypeInNumber("0.");
				}
				IsReal = true;
			}
		}

		private void button15_Click(object sender, System.EventArgs e)
		{
			ShowResult();
		}
		private void button4_Click(object sender, System.EventArgs e)
		{	//除
			Operate( "div" );
		}

		private void button16_Click(object sender, System.EventArgs e)
		{	//加
			Operate( "add" );
		}

		private void button8_Click(object sender, System.EventArgs e)
		{	//乘
			Operate( "mul" );
		}

		private void button12_Click(object sender, System.EventArgs e)
		{	//减
			Operate( "minus" );
		}

		private void button17_Click(object sender, System.EventArgs e)
		{	// 清空
			Clear();
		}
	}
}