python学习简单计算器
#简单计算器
#定义简单的加减乘除计算器 add(+)，subtract(-)，multiply(x) ，divide(/)
def add(x, y):
return x + y
def subtract(x, y):
return x - y
def multiply(x, y):
return x * y
def divide(x, y):
if y == 0:
return '分母不能为0, 计算无效'
else:
return x / y
print("请选择运算符号：")
print("+""-""x""/")
choice = input("请输入运算(+ - x /):")
num1 =int(input("请输入数字1："))
num2 =int(input("请输入数字2："))
if choice == '+':
print(num1,'+',num2,'=',add(num1,num2))
elif choice == '-':
print(num1,'-',num2,'=',subtract(num1,num2))
elif choice == 'x':
print(num1,'x',num2,'=',multiply(num1,num2))
elif choice == '/':
print(num1,'/',num2,'=',divide(num1,num2))
else:
print("输入错误")
页:
[1]