ruby中任何东西都是一个类,完全面向对象的语言,一个数字也是一个类
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定义一个类
class Student
# 构造方法
def initialize(name,no,gender)
# 把传递进来的值存在类变量中
@name = name
@no = no
@gender = gender
end
def sayHi
puts "我叫#{@name},学号是#{@no},性别#{@gender}"
end
end
然后进入irb命令行
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