C#编写的windows计算器-源代码

C#编写的windows计算器-源代码(12)             this.btn_equ.ForeColor = System.Drawing.Color.Red;
            this.btn_equ.Location = new System.Drawing.Point(178, 144);
            this.btn_equ.Name = "btn_equ";
            this.btn_equ.Size = new System.Drawing.Size(36, 29);
            this.btn_equ.TabIndex = 36;
            this.btn_equ.Text = "=";
            this.btn_equ.Click += new System.EventHandler(this.btn_equ_Click);
            //
            // btn_sign
            //
            this.btn_sign.Font = new System.Drawing.Font("宋体", 10.5F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
            this.btn_sign.ForeColor = System.Drawing.Color.Blue;
            this.btn_sign.Location = new System.Drawing.Point(58, 144);
            this.btn_sign.Name = "btn_sign";
            this.btn_sign.Size = new System.Drawing.Size(36, 29);
            this.btn_sign.TabIndex = 35;
            this.btn_sign.Text = "+/-";
            this.btn_sign.Click += new System.EventHandler(this.btn_Oper);