LabVIEW软件来进行设计，完成液位的采集系统设计，并通过 LABVIEW前面板显示液位的高低变化，实现上下限报警，实时采集显示等功能。(LabVIEW software to design, complete the level of the acquisition system design, and through the LABVIEW front panel display level changes, to achieve the upper and lower limits al