摘要:
1 We get confused when there are many options to choose from. Same is the case when it comes to use any one from the above list. But one needs to be careful in using them and it is better that we un... 阅读全文
摘要:
上面的flip-flop的用法,你可以理解成 将 大于等于5和小于等于10的数字打印出来,也就是理解成 puts x if x >=5 && x <=10 ,但是注意你不能写成下面这样 如果写成绿色背景的代码,就会造成输出 大于等于5 小于等于20的数字 问题2 flip-flop的用法 在普通的判 阅读全文
摘要:
The == comparison checks whether two values are equal eql? checks if two values are equal and of the same type equal? checks if two things are one and 阅读全文