using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
namespace SearchUpperChar
{
public partial class Frm_Main : Form
{
public Frm_Main()
{
InitializeComponent();
}
private void Frm_Main_Load(object sender, EventArgs e)
{
string sourceString = "int I = 5; string S = (I % 2 == 0 ? \"偶数\" : \"奇数\");";
//过滤字符串中所有的大写字符
var query = from s in sourceString
where char.IsUpper(s)
select s;
//显示查询结果
label1.Text = "数据源:" + sourceString + "\n\n";
label1.Text += "属于大写字母类别的字符有:";
foreach (var item in query)
{
label1.Text += item.ToString() + " ";
}
}
}
}
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