用lcd1602显示ds18b20的温度，大概每秒种读一次温度并用lcd显示。里面有lcd1602及ds1802的驱动驱动函数，值得一看。单片机用stc89c52.-Show ds18b20 with lcd1602 temperature, probably read once per second and use lcd temperature display. There lcd1602 and ds1802 driver driving function, worth a visit.