เมธอด Copy() ใน C# ใช้เพื่อสร้างอินสแตนซ์ใหม่ของ String ด้วยค่าเดียวกับ String ที่ระบุ
ไวยากรณ์
public static string Copy (string s);
ด้านบน s คือสตริงที่จะคัดลอก
ตัวอย่าง
using System;
public class Demo {
public static void Main(string[] args) {
string s1 = "Amy";
string s2 = "Katie";
string s3 = String.Copy(s2);
Console.WriteLine("String1 = "+s1);
Console.WriteLine("String2 = "+s2);
Console.WriteLine("Are both the strings equal? = "+s1.Equals(s2));
Console.WriteLine("Are both the strings equal? = "+s2.Equals(s3));
Console.WriteLine(string.CompareOrdinal(s1, s2));
Console.WriteLine(string.CompareOrdinal(s2, s3));
}
} ผลลัพธ์
String1 = Amy String2 = Katie Are both the strings equal? = False Are both the strings equal? = True -10 0
ตัวอย่าง
using System;
public class Demo {
public static void Main(string[] args) {
string s1 = "Gary";
string s2 = "Gary";
string s3 = String.Copy(s2);
Console.WriteLine("String1 = "+s1);
Console.WriteLine("String2 = "+s2);
Console.WriteLine("Is s1 and s2 equal? = "+s1.Equals(s2));
Console.WriteLine("Is s2 and s3 equal? = "+s2.Equals(s3));
s3 = "Harry";
Console.WriteLine("Is s2 and s3 equal? = "+s2.Equals(s3));
}
} ผลลัพธ์
String1 = Gary String2 = Gary Is s1 and s2 equal? = True Is s2 and s3 equal? = True Is s2 and s3 equal? = False
