All right? The first one is, that test has to involve-- shouldn't have to, the value of some variable.

好不好？第一件事是，循环开始的测试必须必须-不是一定，一些变量的值。

麻省理工公开课 - 计算机科学及编程导论课程节选

One of the advantages of this is, that I don't have to worry about explicitly updating my variable. That happens for me automatically.

这样继续下去，这样做的一个优点是,我不用为更新变量来发愁了,程序会自动的为我进行这个操作，这一点很好。

麻省理工公开课 - 计算机科学及编程导论课程节选

But it's variable because it doesn't always go off on the thousandth time.

但中奖比率是变化的,因为你并不总在拉杆一千次的时候中大奖。

耶鲁公开课 - 心理学导论课程节选

The US government has then traded a fixed rate of 0.57 for a bet on the variable rate of US T-Bills over the the next 10 years.

FORBES: Connect

And I also think another variable that we haven't thought about is the early voting.

NPR: As Election Day Nears, Poll Data Questioned

For instance, Apple offers customers up to 18 months interest-free on purchases on a card from Barclaycard US. But if you don't pay off that specific purchase in the interest-free period, you'll face a variable annual percentage rate that's currently about 23%, according to the Apple website.

WSJ: 12 Debt Myths That Trip Up Consumers