ruby學習筆記(8)-”靜態方法的4種寫法”與”單例方法的2種寫法”

#靜態方法的4種寫法class Test  def Test.StaticMethod1    puts "Test.StaticMethod1"  end    def self.StaticMethod2    puts "Test.StaticMethod2"  end    class << Test    def StaticMethod3      puts "Test.StaticMethod3"    end  end    class << self    def StaticMethod4      puts "Test.StaticMethod4"    end  endend  Test.StaticMethod1Test.StaticMethod2Test.StaticMethod3Test.StaticMethod4

 

#單例方法的2種寫法class Test  def method1    puts "method1"  endendt1 = Test.newdef t1.singleMethod1  puts "t1.singleMethod1"endclass << t1  def singleMethod2    puts "t1.singleMethod2"  endendt2 = Test.newt1.method1t2.method1t1.singleMethod1t1.singleMethod2#t2.singleMethod1 #將報錯#t2.singleMethod2 #將報錯