資源簡介
使用兩種方法實(shí)現(xiàn)的四則運(yùn)算算式計算器，初學(xué)者來練習(xí)條件判斷語句、自定義函數(shù)、異常的處理等基本應(yīng)用。
代碼片段和文件信息
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?Calc
{
????public?partial?class?FormMain?:?Form
????{
????????public?FormMain（）
????????{
????????????InitializeComponent（）;
????????}
????????private?void?btnCalc_Click（object?sender?EventArgs?e）
????????{
????????????Double?dblX?=?0?dblY?=?0?dblZ?=?0;
????????????Char?chrSymbol?=?Convert.ToChar（cmbSymbol.Text）;
????????????if?（txtX.Text?==?““?||?txtY.Text?==?““）
????????????{
????????????????MessageBox.Show（“X或Y的數(shù)值未輸入!“）;
????????????????txtX.Focus（）;
????????????}
????????????else
????????????{???
????????????????try
???????????? ?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2019-12-19?23:46??Calc\
?????目錄???????????0??2019-12-19?23:46??Calc\Calc\
?????文件?????????187??2019-12-19?23:46??Calc\Calc\App.config
?????文件????????3787??2019-12-19?23:49??Calc\Calc\Calc.csproj
?????文件???????13188??2019-12-20?02:43??Calc\Calc\Form1.Designer.cs
?????文件????????4035??2019-12-20?02:45??Calc\Calc\Form1.cs
?????文件????????7657??2019-12-20?02:43??Calc\Calc\Form1.resx
?????文件?????????519??2019-12-20?00:15??Calc\Calc\Program.cs
?????目錄???????????0??2019-12-19?23:46??Calc\Calc\Properties\
?????文件????????1328??2019-12-19?23:46??Calc\Calc\Properties\AssemblyInfo.cs
?????文件????????2860??2019-12-19?23:46??Calc\Calc\Properties\Resources.Designer.cs
?????文件????????5612??2019-12-19?23:46??Calc\Calc\Properties\Resources.resx
?????文件????????1091??2019-12-19?23:46??Calc\Calc\Properties\Settings.Designer.cs
?????文件?????????249??2019-12-19?23:46??Calc\Calc\Properties\Settings.settings
?????目錄???????????0??2019-12-19?23:46??Calc\Calc\bin\
?????目錄???????????0??2019-12-19?23:49??Calc\Calc\bin\Debug\
?????文件???????15360??2019-12-20?02:45??Calc\Calc\bin\Debug\Calc.exe
?????文件?????????187??2019-12-19?23:46??Calc\Calc\bin\Debug\Calc.exe.config
?????文件???????28160??2019-12-20?02:45??Calc\Calc\bin\Debug\Calc.pdb
?????文件???????22984??2019-12-20?02:47??Calc\Calc\bin\Debug\Calc.vshost.exe
?????文件?????????187??2019-12-19?23:46??Calc\Calc\bin\Debug\Calc.vshost.exe.config
?????文件?????????490??2018-09-15?15:29??Calc\Calc\bin\Debug\Calc.vshost.exe.manifest
?????目錄???????????0??2019-12-19?23:46??Calc\Calc\obj\
?????目錄???????????0??2019-12-20?02:45??Calc\Calc\obj\Debug\
?????文件????????1588??2019-12-20?02:43??Calc\Calc\obj\Debug\Calc.FormMain.resources
?????文件?????????180??2019-12-19?23:49??Calc\Calc\obj\Debug\Calc.Properties.Resources.resources
?????文件?????????612??2019-12-20?02:47??Calc\Calc\obj\Debug\Calc.csproj.FileListAbsolute.txt
?????文件?????????975??2019-12-20?02:43??Calc\Calc\obj\Debug\Calc.csproj.GenerateResource.Cache
?????文件????????2209??2019-12-19?23:49??Calc\Calc\obj\Debug\Calc.csprojResolveAssemblyReference.cache
?????文件???????15360??2019-12-20?02:45??Calc\Calc\obj\Debug\Calc.exe
?????文件???????28160??2019-12-20?02:45??Calc\Calc\obj\Debug\Calc.pdb
............此處省略7個文件信息
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