1#!python23deffunc():4try:5strinput =input()67#判断输入非空,为空结束8ifstrinput ==''orstrinput.isspace():9print('input is null')10returnFalse1112strlist =strinput.split()13a =strlist[0]14b = strlist[1]1516#判断是否为数字,异常则退出17float(a)18float(b)1920#两端去除0和.21a = ...