This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
pt = 100*(double)Data1/(double)Data2;
请问一下在Contiki里这个计算式应该怎么写，我这样写打印出来的结果是空白的，裸机下结果是对的，Data1和Data2都有数据。
在IAR下是正常的，但是在Contiki里就不对是什麼意思？你的問題跟浮点型运算沒關係吧
這個應該是Contiki的sprintf不能處理%，替代方式可以用下面的源碼顯示到小數下二位
sprintf(ch, "this is float pt %d.%d\n", (int)pt, (int)((int)(pt*100)%100));
printf("%s", ch);
