单片机中怎么把float得的变量显示在1602的液晶屏上

Answer 1

float d=123.45;
int b[4] ;
void main() {
int a = d*100;
b[0] = a&0xff;
b[1] = (a>>8)&0xff;
b[2] = (a>>16)&0xff;
b[3] = (a>>24)&0xff;
printf("source:%f\n",d);
//Serial translate.
int r = b[0]+ (b[1]<<8) +(b[2]<<16) +(b[3]<<24);
printf("recoved:%f",(float)r/100);
}

Answer 2

变成整数取位

追问

怎么变整数。。