Question

C#中用什么函数可以返回某一字符串从另一字符串的左/右侧开始算起第一次出现的位置 C#

例如,VB中: Dim strsde As String strsde= "456123.25 " Dim pos As Long pos = InStrRev(strsde, ". ") 其中,InStrRev函数:返回某一字符串从另一字符串的右侧开始算起第一次出现的位置. 在C#里应怎样实现 大侠帮忙啊...... string strsde = "456123.25 "; long pos = strsde.IndexOf( ". ");

Answer 1

using System;using System.Collections;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Linq;using System.Text;using System.Windows.Forms;using Microsoft.VisualBasic;using Microsoft.VisualBasic.CompilerServices;namespace WindowsFormsApplication1{ public partial class Form1 : Form { public Form1() { InitializeComponent(); test(); } private void test() { string str="abcdefghijklmnopqrstuvwxyz"; label1.Text = Strings.Left(str, 5); label2.Text = Strings.Right(str, 5); label3.Text = str.Substring(0,5);//Left label4.Text = str.Substring(str.Length - 5);//Right } }} 查看原帖>>