我读了Android教程,我来进行的跨验证码: public final class FeedReaderContract {
// To prevent someone from accidentally instantiating the contract class,
// give it an empty constructor.
public FeedRea
我有以下模块,其中有一个变量,其中包含一个字符串的假设年的第一天,1个方法输出一个字符串和另一种方法,还输出一个字符串: module Week
first_day = "Sunday"
def weeks_in_month
puts "There are 4 weeks in a month"
end
def weeks_in_year