从终端输入两个数，完成加，减，乘，除

Posted 2020-12-24 542684416-qq

import  sys
def   numeration(a,b,c):
    if    b == ‘+‘:
        return int(a) + int(c)
    elif  b == ‘-‘:
        return int(a) - int(c)
    elif  b == ‘*‘:
        return int(a) * int(c)
    elif  b == ‘/‘:
        return int(a) / int(c)
print(numeration(sys.argv[1],sys.argv[2],sys.argv[3]))