2019-11-16

if None:
    print(True)
else:
    print(False)
    
if 0:
    print(True)
else:
    print(False)
    
if 0.0:
    print(True)
else:
    print(False)

if 0+0j:
    print(True)
else:
    print(False)
    
if '':
    print(True)
else:
    print
    
b = 3
if b:
    print(True)
    
if '\0':
    print(True)
else:
    print(False)
if ' ':
    print(True)
else:
    print(False)
print(bool(0))
print(bool(10))

print(type(120))
print(type(2147483648))
print(type(3.141592))
print(type(1.23456e3))
print(type('hello'))
print(type("Hellpworld"))
print(type(True))
print(type(False))

print(int(3.14))
print(int(3.6))
print(int(True))
print(int(False))
print(int('12345'))
print(float(100))
print(float(True))