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问题描述
标题是整个问题。有人可以给我一个理由,为什么出现这种情况?
Title is the entire question. Can someone give me a reason why this happens?
推荐答案
是 - 因为它没有与空字符串开始。事实上,空字符串在逻辑上每对字符之间。
Yes - because it does begin with the empty string. Indeed, the empty string logically occurs between every pair of characters.
这样说吧:什么定义的开头你可以给将preclude呢?这里有一个简单的定义开始与这并不:
Put it this way: what definition of "starts with" could you give that would preclude this? Here's a simple definition of "starts with" that doesn't:
X与开始出现Y如果x匹配的Y的第一 y.Length
字符。
"x starts with y if the first y.Length
characters of x match those of y."
这是另一种(当量)的定义:
An alternative (equivalent) definition:
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