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?二維數(shù)組求行列對(duì)角線(xiàn)之和
{
????public?partial?class?Form1?:?Form
????{
????????public?Form1（）
????????{
????????????InitializeComponent（）;
????????}
????????int[]?a?=?new?int[4?4];
????????int?i?=?0;
????????int?j?=?0;
??
????????private?void?button1_Click_1（object?sender?EventArgs?e）
????????{
????????????if?（i?????????????{
????????????????a[i?j]?=?Int32.Parse（textBox1.Text）;
????????????????textBox1.Text?=?““;
????????????????textBox2.Text?+=?Convert.ToString（a[i?j]?+?““）;
????????????}
????????????j++;
????????????if?（j?==?4）
????????????{
????????????????i++;?j?=?0;
????????????}
????????????if?（i?==?4）?MessageBox.Show（“輸入完成！“）;
????????????string?s?=?““;
????????????for?（int?m?=?0;?m?????????????{
??????

?屬性????????????大小?????日期????時(shí)間???名稱(chēng)
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?????目錄???????????0??2020-04-30?18:46??二維數(shù)組求行列對(duì)角線(xiàn)之和\
?????目錄???????????0??2020-04-30?18:46??二維數(shù)組求行列對(duì)角線(xiàn)之和\.vs\
?????文件??????221184??2020-04-30?18:46??二維數(shù)組求行列對(duì)角線(xiàn)之和\.vs\slnx.sqlite
?????文件?????????190??2020-04-30?18:46??二維數(shù)組求行列對(duì)角線(xiàn)之和\.vs\VSWorkspaceState.json
?????目錄???????????0??2020-04-30?17:08??二維數(shù)組求行列對(duì)角線(xiàn)之和\.vs\二維數(shù)組求行列對(duì)角線(xiàn)之和\
?????目錄???????????0??2020-04-30?17:08??二維數(shù)組求行列對(duì)角線(xiàn)之和\.vs\二維數(shù)組求行列對(duì)角線(xiàn)之和\v16\
?????文件???????38400??2020-04-30?18:46??二維數(shù)組求行列對(duì)角線(xiàn)之和\.vs\二維數(shù)組求行列對(duì)角線(xiàn)之和\v16\.suo
?????目錄???????????0??2020-04-30?17:08??二維數(shù)組求行列對(duì)角線(xiàn)之和\.vs\二維數(shù)組求行列對(duì)角線(xiàn)之和\v16\Server\
?????目錄???????????0??2020-04-30?18:46??二維數(shù)組求行列對(duì)角線(xiàn)之和\.vs\二維數(shù)組求行列對(duì)角線(xiàn)之和\v16\Server\sqlite3\
?????文件???????????0??2020-04-30?17:08??二維數(shù)組求行列對(duì)角線(xiàn)之和\.vs\二維數(shù)組求行列對(duì)角線(xiàn)之和\v16\Server\sqlite3\db.lock
?????文件??????598016??2020-04-30?18:46??二維數(shù)組求行列對(duì)角線(xiàn)之和\.vs\二維數(shù)組求行列對(duì)角線(xiàn)之和\v16\Server\sqlite3\storage.ide
?????目錄???????????0??2020-04-30?18:44??二維數(shù)組求行列對(duì)角線(xiàn)之和\二維數(shù)組求行列對(duì)角線(xiàn)之和\
?????文件?????????189??2020-04-30?17:08??二維數(shù)組求行列對(duì)角線(xiàn)之和\二維數(shù)組求行列對(duì)角線(xiàn)之和\App.config
?????目錄???????????0??2020-04-30?17:53??二維數(shù)組求行列對(duì)角線(xiàn)之和\二維數(shù)組求行列對(duì)角線(xiàn)之和\bin\
?????目錄???????????0??2020-04-30?17:44??二維數(shù)組求行列對(duì)角線(xiàn)之和\二維數(shù)組求行列對(duì)角線(xiàn)之和\bin\Debug\
?????文件???????10752??2020-04-30?18:44??二維數(shù)組求行列對(duì)角線(xiàn)之和\二維數(shù)組求行列對(duì)角線(xiàn)之和\bin\Debug\二維數(shù)組求行列對(duì)角線(xiàn)之和.exe
?????文件?????????189??2020-04-30?17:08??二維數(shù)組求行列對(duì)角線(xiàn)之和\二維數(shù)組求行列對(duì)角線(xiàn)之和\bin\Debug\二維數(shù)組求行列對(duì)角線(xiàn)之和.exe.config
?????文件???????34304??2020-04-30?18:44??二維數(shù)組求行列對(duì)角線(xiàn)之和\二維數(shù)組求行列對(duì)角線(xiàn)之和\bin\Debug\二維數(shù)組求行列對(duì)角線(xiàn)之和.pdb
?????目錄???????????0??2020-04-30?17:53??二維數(shù)組求行列對(duì)角線(xiàn)之和\二維數(shù)組求行列對(duì)角線(xiàn)之和\bin\Release\
?????文件????????2200??2020-04-30?18:44??二維數(shù)組求行列對(duì)角線(xiàn)之和\二維數(shù)組求行列對(duì)角線(xiàn)之和\Form1.cs
?????文件????????6514??2020-04-30?18:44??二維數(shù)組求行列對(duì)角線(xiàn)之和\二維數(shù)組求行列對(duì)角線(xiàn)之和\Form1.Designer.cs
?????文件????????5817??2020-04-30?18:44??二維數(shù)組求行列對(duì)角線(xiàn)之和\二維數(shù)組求行列對(duì)角線(xiàn)之和\Form1.resx
?????目錄???????????0??2020-04-30?17:53??二維數(shù)組求行列對(duì)角線(xiàn)之和\二維數(shù)組求行列對(duì)角線(xiàn)之和\obj\
?????目錄???????????0??2020-04-30?18:44??二維數(shù)組求行列對(duì)角線(xiàn)之和\二維數(shù)組求行列對(duì)角線(xiàn)之和\obj\Debug\
?????文件????????1435??2020-04-30?18:17??二維數(shù)組求行列對(duì)角線(xiàn)之和\二維數(shù)組求行列對(duì)角線(xiàn)之和\obj\Debug\DesignTimeResolveAssemblyReferences.cache
?????文件????????7369??2020-04-30?17:09??二維數(shù)組求行列對(duì)角線(xiàn)之和\二維數(shù)組求行列對(duì)角線(xiàn)之和\obj\Debug\DesignTimeResolveAssemblyReferencesInput.cache
?????目錄???????????0??2020-04-30?17:08??二維數(shù)組求行列對(duì)角線(xiàn)之和\二維數(shù)組求行列對(duì)角線(xiàn)之和\obj\Debug\TempPE\
?????文件????????1403??2020-04-30?18:42??二維數(shù)組求行列對(duì)角線(xiàn)之和\二維數(shù)組求行列對(duì)角線(xiàn)之和\obj\Debug\二維數(shù)組求行列對(duì)角線(xiàn)之和.csproj.FileListAbsolute.txt
?????文件????????1012??2020-04-30?18:44??二維數(shù)組求行列對(duì)角線(xiàn)之和\二維數(shù)組求行列對(duì)角線(xiàn)之和\obj\Debug\二維數(shù)組求行列對(duì)角線(xiàn)之和.csproj.GenerateResource.cache
?????文件?????????424??2020-04-30?18:44??二維數(shù)組求行列對(duì)角線(xiàn)之和\二維數(shù)組求行列對(duì)角線(xiàn)之和\obj\Debug\二維數(shù)組求行列對(duì)角線(xiàn)之和.csprojAssemblyReference.cache
?????文件???????10752??2020-04-30?18:44??二維數(shù)組求行列對(duì)角線(xiàn)之和\二維數(shù)組求行列對(duì)角線(xiàn)之和\obj\Debug\二維數(shù)組求行列對(duì)角線(xiàn)之和.exe
............此處省略13個(gè)文件信息