说明：  一个While循环和定时器，实现连续的温度采集监测,连续温度采集监测添加报警信息，如下图所示，当报警发生时输出报警信息，例如“温度超限！当前温度78.23℃”，正常情况下输出空字符串。
(While loop and a timer for continuous monitoring of temperature acquisition, continuous monitoring of temperature acquisition to add alarm information, as shown below, when an alarm occurs, alarm output, such as " temperature gauge! The current temperature of 78.23 ℃" , under normal circumstances output an empty string.)