pythonweb-01
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x=1
y=1
print(id(x),x,type(x),id(y),type(y))
y=2
print(id(x),y,type(x),id(y),type(y))
x=1.1
print(type(x),id(x))
x=True
print(type(x),id(x))
x=float(x)
print(type(x),id(x))
print(1==True)
print(0!=False)
print(1/3+1/3+1/3)
print(1,5j) #complex number
from decimal import Decimal
a=Decimal('1.1')
print(type(a),a)
print(0.5-0.4)
print(0.1+0.1+0.1)
b=Decimal('0.1')
print(b+b+b)
print(Decimal('0.5')-Decimal('0.4'))
print(0.1*3)
print(b*3)
# list
name=["john",'ann','peter',[True,12,55,["hello","world",3.4,'1'],"Dave"]]
print(name)
print(name[0],id(name[0]),name[1],id(name[1]),name[2],id(name[2]))
age = [30,12,60]
name[1]=age
print(name)
print(name[0],id(name[0]),name[1],id(name[1]),name[2],id(name[2]))
print(name,name[1],name[1][1]) #print age[1] 12
print(name[3][3][3]) #print 1 in ["hello","world",3.4,'1']
Python
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