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void OutToWord()
{
if (dataGridView1.Rows.Count >= 1)
{
string tempstr ="";
Stream myStream;
SaveFileDialog dlg =new SaveFileDialog();
dlg.Filter = "(Word文件)*.doc|*.doc";
//dlg.Filter = "(Word文件)*.xls|*.xls";
dlg.FilterIndex = 2;
dlg.RestoreDirectory = true;
if (dlg.ShowDialog() ==DialogResult.OK)
{
if ((myStream = dlg.OpenFile()) !=null)
{
StreamWriter sw =new StreamWriter(myStream,Encoding.GetEncoding("gb2312"));
string str ="";
try
{
for (int i = 0; i < dataGridView1.ColumnCount; i++)
{
if (i > 0) str +="\t\t";
str += dataGridView1.Columns[i].HeaderText;
}
sw.WriteLine(str);
for (int j = 0; j < dataGridView1.Rows.Count - 1; j++)
{
tempstr = "";
for (int k = 0; k < dataGridView1.Columns.Count; k++)
{
if (k > 0) tempstr +="\t\t";
tempstr += dataGridView1.Rows[j].Cells[k].Value.ToString();
}
sw.WriteLine(tempstr);
}
sw.Close();
myStream.Close();
MessageBox.Show("已將信息導(dǎo)出到word","提示");
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString());
}
finally
{
sw.Close();
myStream.Close();
}
}
}
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theieldKeyWordinc#simplifiesteratorcreationBeycreationSomateAtAtAtenablesLazyEvaluation.1.ItAllOwSreturningItemSoneatAtimeUsingyieldRetrern, weeneachitem, 2.yieldBreenceCanbeus
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DependencyInjection(DI)inC#isadesignpatternthatenhancesmodularity,testability,andmaintainabilitybyallowingclassestoreceivedependenciesexternally.1.DIpromotesloosecouplingbydecouplingobjectcreationfromusage.2.Itsimplifiestestingthroughmockobjectinject
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C#?? idisposable? ??? ??? ???? ?? ???? ????? ????? ???? ????. 1. idisposable? dispose () ???? ???? ???? ???? ?? ???? ???? ??? ???? ?? ? ? ???; 2. ?? ???? ??? ??? ??? ?? Dispose ()? ???? ????? ???? ??? ??? ????? ??? ?????. 3.?? ??? ? ??? idisposable? ???? ?? ??? ?? ? ? ??? StreamReader? ?? ??? ?? ???????. 4. ???? ?? ???? ??, ?? ? ??? ???? ???? Dispose (BOOL) ??? ???? ?? ???? ???? ?? ?? ?????.
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NULLABLEREFERENCETYPES (NRTS) INC#8 HELPCATCHNULLREFERNEEXCEPTIONERCECTIONPILETIMEBYMAKINGERENCETYPESNON-NULLABLEBYDEFAULT.NURTSMUSTBEEBEDITHERINTHETHETHE.CSPROJFILEWITHENORATTETTETOPA.CSFILESOUN NULL
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Jun 23, 2025 am 12:05 AM
C# ???? 4 ?? ???? "??"??? ??????. ??, ???/???? ????? ??? ?? ?? ? ?? ??? ?????. ??? ?? ????? ??? ????, configureawait (false)? ???? ??? ????????. ??, VAR? ?? ??? ???? ???? ??? ??? ??? ??? ? ? ? ??? ?? ??? ???? ?????. ??, ?? ? ?? ??? ?? ???? ??? ???? ?? ???? ???? ?????? IDISPosable ?? ??? ?????????. ??, ?? ??? ?? ?? ?? ???? ?? ??? ???? ???? ??? ??, ? ?? ?? ????? ???? ????? ?? ??? ????????. ??? ??? ??? ?? ??? ?? ??? ?? ?? ? ? ????.
C#? SPAN ? ??? ? ???? ??? ???? ????? ??? ?? ??? ??? ??????
Jun 18, 2025 am 12:11 AM
?? ? ???? ??? ??? ????? C# ??? ??????. 1. ??? ?? ??? ??? ?? ???? ?? ??? ??? ????, ?? ?? ????, ??? ?? ? ??? ?? ??? ?????. 2. ???? ??? ??? ?? ??? ????? ???? ?? ????, ?? ? ??? ????? ??? ????? ?????. 3. ? ? GC ??? ??? ??? ????? ?? ??? ????? ??? ??????. 4. SPAN? ???? ???? ??? ???? ???? ????? ??? ???? ??? ? ????. Calling.toArray ()? ?? ? ?? ??? ??? ????????.
C# ?? ?? ????? ??? ??? ?? ????? ?? ? ? ?????
Jun 25, 2025 am 12:47 AM
??? ??? ?? ?? ?????? ?? ?? ?? ? ?? ?? ??????? 5 ?? ?? ?????. 1. SRP (Single Responsibility Principle)? ???? ??? ?? ?? ? ??? ??? ?? ??? ?? ? ????? ?????. 2. OCP (Opening and Closing Principle)? ISHAPE ?????? ???? ?? ???? ?? ??? ???? ?? ?? ?? ??? ???? ?? ????? ?? ?? ???? ?? ??? ????? ?? ?????. 3. Richter ?? ?? (LSP)? ?? ???? ??? ???? ?? ?? ???? ?? ? ? ??????. 4. ISP (Interface Displence Principle)? ?? ???? ??? ?? ?? ?? ? ?? ??? ?? ??? ?????? ??? ?????. 5. ??? ?? ?? (DIP)?
