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But if I say turn this into a float, ah it throws a value error exception.
它就会抛出一个值错误异常了，它会告诉我输入了一种错误的值。
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I'm much better having an exception get handled at the time of input than to let that prop -- that value rather propagate through a whole bunch of code until eventually it hits an error 17 calls later, and you have no clue where it came from.
不是我期望的格式,这时我最好有一个异常处理,而不是让其传下去,这个值传到代码的整个分支,最终会导致一个错误17调用的发生，并且你不知道这个错误是哪里来的。
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This is a true or false value.
这是一个正确或错误的值。
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OK, so what else do I have then in my little class definitions here?
你需要重新计算其他的值,来让保证不出现错误？
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It's a little more readable because I'm using a Boolean value that tells me, the programmer, this is true or this is false.
它更具有可读性一点,因为我使用了一个bool值，它告诉我或程序员，这是正确的或这是错误的。
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Z So it would be incorrect to try to assign this to a variable X or Y or Z, because it doesn't actually give me anything back.
这个是错误的，来赋值这个给变量X或Y或,因为它的确没有返回什么给我。
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