為了串口傳輸數(shù)據(jù)與接收數(shù)據(jù)解析的方便，將所有類型數(shù)據(jù)按照其數(shù)據(jù)類型所占字節(jié)數(shù)存入char數(shù)組進(jìn)行逐字節(jié)發(fā)送。接收方拿到數(shù)據(jù)后再根據(jù)數(shù)據(jù)包協(xié)議，將數(shù)據(jù)按數(shù)據(jù)類型長(zhǎng)度劃分取出，進(jìn)行解析。

void main()
{
    float a= 1254.42f;
    char b[4];
    float c;
 
    memcpy(b, &a, sizeof(a));
    //傳輸過(guò)程
    //接收，再轉(zhuǎn)換
    memcpy(&c, b, sizeof( b));
 
    printf("%f\n", c);
}