9/3/26

x=1

def a():

print("hello")

print(a,id(a),id(x))

a()

a=10

print(a,x)

del(a,x)

x=1

print(type(x))

x=1.0

print(type(x))

x="hello"

print(type(x))

x="2"

print(float(x))

print(type(x))

x=True

y=False

z="hello"

print(type(x),type(y),type(z))

print(int(x),int(y))

d="""3ihgiahjgi iajgie jngioer gjinagiern gianiogjoiejsl injnoigjio ingoahng oai iaongioajgnioe ioaijniojiojiojiojoj i jiojiojiojiojoijoaj jiojio oi"""

e='i\'m john'

print(e)

e='i\'m \t:\man john'

print(e,e,sep='\t')

if 5 > 2:

print("Five is greater than two!")

x='1000'

print(x.isalnum())

x='1000.aver'

print(x.isalnum())

x=False

print(x==1) #bool internal value True/1 False/0

result=None or False or 0 or 0.0

print(result)

result=None or False or'' or 0 or 0.0 or [] or {} #falsy value

print(result)

result=True or False or'' or 0 or 0.0 or [] or {} #falsy value

print(result)

result=True and 1 and 1.0 and [1] and {'a':1} and 'jh' # truthy value

print(result)

default = "KW"

city = 'tw'

city = city or print("please input city") or default

print(city)

default = "KW"

city = ''

city = city or print("please input city") or default

print(city)

print(print("something"))

print(bool(city))

print(bool(print("something")))

city = ''

city = city or print("please input city")

print(city)

print(0.5-0.4)

print(0.1+0.1+0.1)