If the cursor finds no appropriate token to move to, it remains where it is, and a value of "false" is returned to indicate that the cursor didn't move.
如果游标没有发现可以移动到的适当标志，那么它将保留在原位，并返回“false”表示游标没有移动。
If the cursor finds no appropriate token to move to, it remains where it is, and a value of "false" is returned to indicate that the cursor didn't move.
如果游标没有发现可以移动到的适当标志，那么它将保留在原位，并返回“false”表示游标没有移动。
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