我在获取以下代码以正确添加SqlCommand参数时遇到问题@vendor.由于某种原因,传递的查询似乎总是:
select TOP 500 *
from [mike_db].[dbo].[na_pe_sql_import]
where vendname like '%@vendor%';
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如果我像这样设置查询,它可以工作,但我知道这是不好的做法:
string strQuery = "select TOP 500 * from [mike_db].[dbo].[na_pe_sql_import] where vendname like '%"+txt_search.Text.ToString()+"%';";
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这是代码:
protected void Search_Click(object sender, EventArgs e)
{
string search = txt_search.Text.ToString();
String strConnString = System.Configuration.ConfigurationManager.ConnectionStrings["mike_db"].ConnectionString;
SqlConnection con = new SqlConnection(strConnString);
con.Open();
string strQuery = "select TOP 500 * from [mike_db].[dbo].[na_pe_sql_import] where vendname like '%@vendor%';";
cmd = new SqlCommand(strQuery, con);
cmd.Parameters.AddWithValue("vendor", search);
txt_search.Text = string.Empty;
DataSet ds = new DataSet();
da …Run Code Online (Sandbox Code Playgroud) 我正在尝试从find_all创建的列表中的最后一个div中提取内容.
post_content = soup.find_all('div',{'class': 'body_content_inner'})
存储以下文本:
[<div class="body_content_inner">
post #1 content is here
</div>, <div class="body_content_inner">
post #2 content is here
</div>]
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我想提取存储在最后一个div标签中的文本,但我不确定如何迭代 post_content
我正在使用Math.Max和Math.Min来查找以下代码中的最大和最小小数:
decimal[] numbers = { d1, d2, d3, d4, d5, d6, d7, d8, d9, d10 };
decimal biggestNumber = numbers.Max();
decimal lowestNumber = numbers.Min();
lblS1Val.Text = biggestNumber.ToString();
lblO1Val.Text = lowestNumber.ToString();
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我想找到三个最大和三个最小的数字.我可以用Math.Max/Min做到吗?