简易计算器

大家好，我是2017 China StudyJams 0202组的学员浊雨落沧桑，这是我的结业作品：可以进行只含一个运算符的整数和小数运算的计算器

Study Jams China：http://www.studyjamscn.com Hello everyone, I am a student 0202 2017 China StudyJams group of cloud Yula vicissitudes of life, this is my graduation work: can contain only one operator of integer and fractional arithmetic calculator

Study Jams China: http: //www.studyjamscn.com