编程嘛!用C语言的unionunion Para{float t;unsigned char buf[4];}如果Para.t=100.0008;则Para.buf[0]=0x42;Para.buf[1]=0xC8;Para.buf[2]=0x00;Para.buf[3]=0x69; 如果要计算原理的话,请参考:http://www.psc.edu/general/software/packages/ieee/ieee.php