在java中public class st {
public static void main(String [] args){
String a="123";
String b="456";
String c="123"+"456";
String d="123"+b;
String e=a+b;
String f="123456";
System.out.println(c==f);
System.out.println(c==d);
System.out.println(c==e);
System.out.println(d==e);
}
}在.net中namespace Bijiao
{
class Program
{
static void Main(string[] args)
{
string a = "123";
string b = "456";
string c = "123" + "456";
string d = "123" + b;
string e = a + b;
string f = "123456";
Console.WriteLine(c==f);
Console.WriteLine(c==d);
Console.WriteLine(c==e);
}
}
}
public static void main(String [] args){
String a="123";
String b="456";
String c="123"+"456";
String d="123"+b;
String e=a+b;
String f="123456";
System.out.println(c==f);
System.out.println(c==d);
System.out.println(c==e);
System.out.println(d==e);
}
}在.net中namespace Bijiao
{
class Program
{
static void Main(string[] args)
{
string a = "123";
string b = "456";
string c = "123" + "456";
string d = "123" + b;
string e = a + b;
string f = "123456";
Console.WriteLine(c==f);
Console.WriteLine(c==d);
Console.WriteLine(c==e);
}
}
}
java中,字符串比较的时候必须要用equals, .net 中字符串==默认比较的就是值