非常好用的类型转化小程序，可以将整形浮点等类型转化为字符串，据说是软件公司的入门考试题哦-The type of conversion is very easy to use small programs can be floating-point and other types of plastic surgery into a string, is said to be the software company' s entry-exam questions oh

通过SCI获得数据，并将字符串数据转化为浮点型作为参数。-acquire the data from the computer through SCI module,then converts the the received characters to float form.