Learning python - variable

Variable is used to store information and later use the program

Variables used:

. 1 name = ' ZWT ' 
2  print ( ' My name IS ' , name) // comma here is equivalent to splice indicating print parameters in 2
 . 3  
. 4 NAME2 = name
 . 5 name = ABC
 . 6  print (name, NAME2) // abc zwt
 7  
8 Note: this name2 or output zwt, because although the name of the value modified, but the address pointed to name2 or zwt. This time with the current name name2 has no relationship. name changed again, it will not affect the name2.

Variable naming rules:

　　Variable names only letters, any combination of underscores, numbers

　　The first character can not be a number of variables

　　The following keywords can not be declared variable name

and	as	asset	break	class	continue	def	of the	elif	else
except	exec	finally	for	form	global	if	import	in	is
lambda	have	or	pass	print	raise	return	try	while	with / yield