现在的状况就是可以简单运算，但是连续那种，比如1+3-2这种就不行，只能实现两位数的四则运算_(:з」∠)_是需要创建个变量来存储sum1 的值么？还是怎么OJZ
求帮助……
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
namespace calculator
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
bool operatorFlag = false;
public void InputNumber(string number1)
{
if (tBanswer.Text == "0")
{
tBanswer.Text = "";
}
tBanswer.Text = tBanswer.Text + number1;
}
private void Form1_Load(object sender, EventArgs e)
{
}
private void bonDec_Click(object sender, EventArgs e)
{
if (tBanswer.Text.IndexOf(".") == -1)
InputNumber(".");
}
private void bon00_Click(object sender, EventArgs e)
{
InputNumber("0");
}
private void bon01_Click(object sender, EventArgs e)
{
InputNumber("1");
}
private void bon02_Click(object sender, EventArgs e)
{
InputNumber("2");
}
private void bon03_Click(object sender, EventArgs e)
{
InputNumber("3");
}
private void bon04_Click(object sender, EventArgs e)
{
InputNumber("4");
}
private void bon05_Click(object sender, EventArgs e)
{
InputNumber("5");
}
private void bon06_Click(object sender, EventArgs e)
{
InputNumber("6");
}
private void bon07_Click(object sender, EventArgs e)
{
InputNumber("7");
}
private void bon08_Click(object sender, EventArgs e)
{
InputNumber("8");
}
private void bon09_Click(object sender, EventArgs e)
{
InputNumber("9");
}
public static string numbersaved;
public static string signsaved;
public void SaveInputed(string num1, string sign1)
{
if (num1 == "0" | num1 == "") return;
numbersaved = num1;
signsaved = sign1;
tBanswer.Text = "0";
}
private void bonAdd_Click(object sender, EventArgs e)
{
SaveInputed(tBanswer.Text, "加");
}
private void bonSub_Click(object sender, EventArgs e)
{
SaveInputed(tBanswer.Text, "减");
}
private void bonMul_Click(object sender, EventArgs e)
{
SaveInputed(tBanswer.Text, "乘");
}
private void bonDiv_Click(object sender, EventArgs e)
{
SaveInputed(tBanswer.Text, "除");
}
private void bonEqula_Click(object sender, EventArgs e)
{
string numbernow = tBanswer.Text;
if (signsaved == "" | numbersaved == "" | numbernow == "" | numbernow == "0") return;
tBanswer.Text = Calcuration(numbersaved, signsaved, numbernow);
signsaved = "";
numbersaved = "";
}
public string Calcuration(string num1, string sign1, string num2)
{
float number1, number2, sum1 = 0, result=0;
try
{
number1 = (float)(Double.Parse(num1));
number2 = (float)(Double.Parse(num2));
if (sign1 == "加")
{
sum1 = number1 + number2;
}
if (sign1 == "减")
{
sum1 = number1 - number2;
}
if (sign1 == "乘")
{
sum1 = number1 * number2;
}
if (sign1 == "除")
{
sum1 = number1 / number2;
}
return result.ToString();
}
catch
{
return "";
}
}
private void bonC_Click(object sender, EventArgs e)
{
tBanswer.Text = "0";
numbersaved = "";
signsaved = "";
}
}
}