เมธอด Equals() ใน C# ใช้เพื่อตรวจสอบว่าอ็อบเจ็กต์สตริงสองออบเจ็กต์มีค่าเท่ากันหรือไม่
ไวยากรณ์
bool string.Equals(string s1, string s2)
ด้านบน s1 และ s2 เป็นสตริงที่จะเปรียบเทียบ
ตัวอย่าง
using System; public class Demo { public static void Main(string[] args) { string s1 = "Kevin"; string s2 = "Tom"; string s3 = 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)); } }
ผลลัพธ์
String1 = Kevin String2 = Tom Are both the strings equal? = False Are both the strings equal? = True
ตัวอย่าง
using System; public class Demo { public static void Main(string[] args) { string s1 = "David"; string s2 = "David"; string s3 = s2; string s4 = "Tom"; string s5 = s4; Console.WriteLine("String1 = "+s1); Console.WriteLine("String2 = "+s2); Console.WriteLine("String3 = "+s3); Console.WriteLine("String4 = "+s4); Console.WriteLine("String5 = "+s5); Console.WriteLine("Is s1 and s2 equal? = "+s1.Equals(s2)); Console.WriteLine("Is s2 and s3 equal? = "+s2.Equals(s3)); Console.WriteLine("Is s3 and s4 equal? = "+s3.Equals(s4)); Console.WriteLine("Is s4 and s5 equal? = "+s4.Equals(s5)); } }
ผลลัพธ์
String1 = David String2 = David String3 = David String4 = Tom String5 = Tom Is s1 and s2 equal? = True Is s2 and s3 equal? = True Is s3 and s4 equal? = False Is s4 and s5 equal? = True