电路具有4个4位的二进制数字作为输入和4个4位的二进制数字作为输出。它的功能是，将4个输入的二进制数字进行排序，从上往下数第一个输出端口输出的是4个数字中最小的，第二个输出端口输出的是第二小的，以此类推(The circuit has 4 4 bit binary digits as input and 4 4 bit binary digits as outputs. Its function is to sort the binary digits of the 4 inputs, from the first output port down to the smallest of the 4 digits, the second output ports, the second smallest, and so on)