double ambientTemp=44.00;
String yourdatacolumn="yourdata=";
String yourdata;
double yourarduinodata=ambientTemp;
yourdata = yourdatacolumn + yourarduinodata;
//我希望输出为字符串.但因为yourarduinodata是双重类型.无法将其转换为字符串.然后,我把(String)放在yourarduinodata面前,仍然不让我跑过去.
任何人都知道在arduino sketch中将double类型转换为字符串类型;