查找表（Look-Up-Table)简称为LUT，LUT本质上就是一个RAM。它把数据事先写入RAM后，每当输入一个信号就等于输入一个地址进行查表，找出地址对应的内容，然后输出。本程序是LUT的C语言实现。-Lookup Table (Look-Up-Table) referred to as LUT, LUT is essentially a RAM. After which the data prior written RAM, whenever the input signal is equal to input an address look-up table, find the corresponding address, and then output. This program is a LUT C language.