小数点显示 小数点显示子程序，我原是用在相位测试仪上的，不过其它地方若要用可以直接调。-decimal point display subroutine show decimal point, I was used in the phase of the test instrument. But if used elsewhere can be directly transferred.

基于数字温度传感器DS18B20的测温仪设计,三位数码管显示温度值，保留小数点后一位。-Based on the digital temperature sensor DS18B20 thermometer design, three digital display temperature value, to retain a decimal point.