C# String.ToLowerInvariant 方法
csharpserver side programmingprogramming更新于 2025/9/14 7:11:00
C# 中的 String.ToLowerInvariant() 方法用于返回此 String 对象的副本，该副本使用不变文化的大小写规则转换为小写。
语法
语法如下 -
public string ToLowerInvariant ();
示例
现在让我们看一个例子 -
using System;
using System.Text;
public class Demo {
public static void Main(String[] args) {
string str1 = "Pink Floyd";
string str2 = "Ariana";
Console.WriteLine("String 1 = "+str1);
Console.WriteLine("String1 ToLowerInvariant = "+str1.ToLowerInvariant());
Console.WriteLine("String 2 = "+str2);
Console.WriteLine("String2 ToLowerInvariant = "+str2.ToLowerInvariant());
Console.WriteLine("String 1 is equal to String 2: {0}", str1.Equals(str2));
}
}
输出
String 1 = Pink Floyd String1 ToLowerInvariant = pink floyd String 2 = Ariana String2 ToLowerInvariant = ariana String 1 is equal to String 2: False
示例
现在让我们看另一个例子 -
using System;
using System.Text;
public class Demo {
public static void Main(String[] args) {
string str1 = "one";
string str2 = "TWO";
string str3 = "ThrEE";
Console.WriteLine("String 1 = "+str1);
Console.WriteLine("String1 ToLowerInvariant = "+str1.ToLowerInvariant());
Console.WriteLine("String 2 = "+str2);
Console.WriteLine("String2 ToLowerInvariant = "+str2.ToLowerInvariant());
Console.WriteLine("String 3 = "+str3);
Console.WriteLine("String3 ToLowerInvariant = "+str3.ToLowerInvariant());
}
}
输出
这将产生以下输出 -
String 1 = one String1 ToLowerInvariant = one String 2 = TWO String2 ToLowerInvariant = two String 3 = ThrEE String3 ToLowerInvariant = three
