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python-study/01python-base/cal/mycalc.py at master · nebofeng/python-study · GitHub
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nebofeng
python-study
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python-study
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01python-base
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cal
/
mycalc.py
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python-study
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01python-base
/
cal
/
mycalc.py
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#eval
def
jia
(
x
,
y
):
return
(
x
+
y
)
def
jian
(
x
,
y
):
return
(
x
-
y
)
def
cheng
(
x
,
y
):
return
(
x
*
y
)
def
chu
(
x
,
y
):
return
(
x
/
y
)
func_dict
=
{
'+'
:
jia
,
'-'
:
jian
,
'*'
:
cheng
,
'/'
:
chu
}
#字典的value是函数
result
=
0
while
True
:
num1
=
int
(
input
(
'请输入你的第一个数字:'
))
#input 接受到的是什么数据类型?
num2
=
int
(
input
(
'请输入你的第二个数字:'
))
oper
=
input
(
'请输入你要做的计算操作:'
)
if
oper
not
in
func_dict
:
#判断的是key值
print
(
'你输入的这个操作符不正确'
)
continue
#continue 可以跳过后面的语句
# 代码 笔记 视频 课堂有 百度云也有
# 心里依靠别人
result
=
func_dict
[
oper
](
num1
,
num2
)
print
(
'结果是:'
,
result
)
You can’t perform that action at this time.