實現效果：
form1.cs**：
using system;
using system.collections.generic;
using system.componentmodel;
using system.data;
using system.drawing;
using system.linq;
using system.text;
using system.threading.tasks;
using system.windows.forms;
namespace cal
private void eq_click(object sender, eventargs e)
catch (exception)
finally
break;
//減法運算
case 2:
trycatch (exception)
finally
break;
//乘法運算
case 3:
trycatch (exception)
finally
break;
//除法運算，討論分母為零的情況
case 4:
if (double.parse(result.text)==0)
else
break;
case 5:
trycatch (exception)
finally
break;}}
private void empty_click(object sender, eventargs e)
}private void zero_click(object sender, eventargs e)
else
}private void one_click(object sender, eventargs e)
else
}private void two_click(object sender, eventargs e)
else
}private void three_click(object sender, eventargs e)
else
}private void four_click(object sender, eventargs e)
else
}private void five_click(object sender, eventargs e)
else
}程式設計客棧 void six_click(object sender, eventargs e)
else
}private void seven_click(object sender, eventargs e)
else
}private void eight_click(object sender, eventargs ewww.cppcns.com)
else
}private void nine_click(object sender, eventargs e)
else
}private void point_click(object sender, eventargs e)
//如果再次輸入.則返回都輸入的字元後邊並提示資訊
else if (result.text.indexof(".") >= 0)
else
}private void add_click(object sender, eventargs e)
catch (exception)
finally
}private void mul_click(object sender, eventargs e)
catch (exception)
finally
}private void sub_click(object sender, eventargs e)
catch(exception)
finally
}private void button1_click(object sender, eventargs e)
catch (exception)
finally
}private void per_click(object sender, eventargs e)
catch (exception)
finally
}private void opp_click(object sender, eventargs e)
catch (exception)
finally
}private void form1_load(object sender, eventargs e)
private void result_textchanged(object sender, eventargs e)
if (result.text.length > 36&&result.text.length<45)
if (result.text.length > 45)}}}
本文標題: c#實現簡單計算器功能
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