如何做？好吧，给和的输入必须是输入进位和将两个输入相加的和。
Well, the input to the sum must be the carry-in and the sum from adding the two input values.
它之所以称为半加器是因为它只有两个输入，即没有进位输入。
It is called "half-adder" because it has only two inputs and does not provide for a carry input.
输入您的十六进位esn在输入外地。
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