四路DS18B20的verilog HDL 代码，精度为1℃无须转换数据，根据输入地址改变直接输出结果。占用600个LE资源，相对于单路程序，更为精减-Four DS18B20 the verilog HDL code, and an accuracy of 1 ℃ without converting the data, enter the address change in accordance with the direct output. Occupy 600 LE resources,