Numeric type (int, float)

# A: int type 
# 1, action: 
# 2, the definition: 
# Age = 10 # Age = int (10) 

# name (parameter) 
# Print ( 'Hello', 'World') 

# X = int (10) 
# INPUT = name ( 'XXX') 
# Print RES = ( 'XXX') # no product (return value) 
# Print (RES) 

# 2, cast 
# 2.1 converted into a string of digital-int 
# RES = int ( ' 100111 ') 
# Print (RES, type (RES)) 

# 2.2 (Learn) 
# 2.2.1 other binary converted into decimal 
# 10 hex -> binary 
# 11 -> 1011 
# 1011-> 8 + 2 + 1 
# Print (bin (11)) # 0b1011 

# 10 hex -> octal 
# Print (the OCT (11)) # 0o13 

# 10 hex -> hex 
# Print (hex (11)) # 0xb 
# Print (hex (123)) 0xb # 

# 2.2.2 other turn made into its decimal 
# binary -> 10 hexadecimal 
# print (int ( '0b1011' ,2)) # 11 

# Binary -> octal
Print # (int ( '0o13',. 8)). 11 # 

# Binary -> 16 hexadecimal 
# Print (int ( '0xb', 16)). 11 # 

#. 3, using 

# two: float type 
# 1 and effect 
# 2 definition 
# salary = 3.1 # salary = float (3.1) 

# 3, type conversion 
# RES = float ( "3.1") 
# Print (RES, of the type (RES)) 

# 4, using 
# int and float there is no need to have built-in method 
# their use is relatively math operations +