class MyWatir < Watir::Browser
def with_watir_window(win)
cw = window #current window
win.use
yield
cw.use
end
def qty
ret = nil
with_watir_window(@win2){
ret = td(:id,'qty').text
}
ret
end
end
在第二个函数中,声明
ret = nil
并在最后声明它似乎很难看。有没有更干净的方法来返回值? 最佳答案
只需从块中返回内部值。还要确保如果发生异常,您将保持一致状态:
class MyWatir < Watir::Browser
def with_watir_window(win)
cw = window #current window
win.use
# the begin/end will evaluate to the value returned by `yield`.
# if an exception occurs, the window will be reset properly and
# there will be no return value.
begin
yield
ensure
cw.use
end
end
def qty
with_watir_window(@win2) do
td(:id,'qty').text
end
end
end
关于ruby - 这个代码片段有更好的做法吗?,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/9350115/