Wu Yuxiong - born naturally PYTHON3 development of learning: the basic data types

# ! / Usr / bin / to python3 
 
counter = 100           # Integer Variable 
Miles = 1000.0        # float variable 
name = " runoob "      # string 
 
Print (counter)
 Print (Miles)
 Print (name)

# ! / Usr / bin / to python3 
 
STR = ' Runoob ' 
 
Print (STR)           # output string 
Print (STR [0: -1])     # output of the first up to the last of the characters in the second 
Print (STR [0] )        # output of the first character 
Print (STR [2:. 5])      # output from the start of the third through fifth characters 
Print (STR [2:])       # output from all of the start of the third character 
Print (STR * 2)       # output string twice 
Print (STR + " the TEST " ) # connection string

# ! / Usr / bin / to python3 
 
List = [ ' ABCD ' , 786, 2.23, ' runoob ' , 70.2 ] 
tinylist = [123, ' runoob ' ] 
 
Print (List)             # outputs the complete list 
Print (List [0])          # outputting a first list element 
Print (list [. 1:. 3])        # the second output to the third element starts from 
Print (list [2:])         # all elements of the output from the third element starts 
Print (tinylist * 2)     # outputted twice listing 
Print (list tinylist +) # Connection List

DEF reverseWords (INPUT): 
      
    # by spaces string delimiter, separated into the individual word list 
    inputWords input.split = ( "  " ) 
  
    # Flip string 
    # Suppose = list List [1,2,3,4],   
    # list [0] = 1, list [1] = 2, and -1 is the last element of the list [-1] = 4 (list [3] = 4 Like) 
    # inputWords [-1 :: -. 1] three parameters 
    # the first parameter -1 is the last element of 
    # the second parameter is blank, is moved to the end of the list 
    # third parameter steps, -1 represents the reverse 
    inputWords inputWords = [-1 :: -. 1 ] 
  
    # recombining string 
    Output = '  ' .join (inputWords) 
      
    return Output 
  
IF  the __name__ == "__main__": 
    input = 'I like runoob'
    rw = reverseWords(input) 
    print(rw)

# ! / Usr / bin / to python3 
 
tuple = ( ' ABCD ' , 786, 2.23, ' runoob ' , 70.2   ) 
tinytuple = (123, ' runoob ' ) 
 
Print (tuple)              # outputs the complete tuple 
Print (tuple [0])           # first tuple element output 
Print (tuple [. 1:. 3])         # output from the second element to the third element starts 
Print (tuple [2:])          # output start from the third element of all elements 
Print (tinytuple * 2)      # outputted twice tuple 
Print (+ tinytuple tuple)# Connection tuples

# ! / Usr / bin / to python3 
 
Student = { ' Tom ' , ' Jim ' , ' Mary ' , ' Tom ' , ' Jack ' , ' Rose ' } 
 
Print (Student)    # output set, repetitive elements are automatically removed 
 
# members of the test 
IF  ' Rose '  in Student:
     Print ( ' Rose in the collection ' )
 the else :
     Print ( 'Rose not in the set ' ) 
 
 
# SET set operation is 
A = SET ( ' Abracadabra ' ) 
b = SET ( ' alacazam ' ) 
 
Print (A) 
 
Print (A - b)      # A and b difference set 
 
Print (A | b )      # a and b and set 
 
Print (a & b)      # a and the intersection b 
 
Print (a ^ b)      # a and b are not simultaneously present in the element

# ! / Usr / bin / to python3 
 
dict = {} 
dict [ ' One ' ] = " . 1 - novice Tutorial " 
dict [ 2] = " 2 - novice Tools " 
 
tinydict = { ' name ' : ' runoob ' , ' code ' :. 1, ' Site ' : ' www.runoob.com ' } 
 
 
print (dict [ ' One ' ])        # output key is 'one' value 
print(dict [2])            # outputs a key value 2 
Print (tinydict)           # outputs the complete dictionary 
Print (tinydict.keys ())    # outputs all keys 
Print (tinydict.values ()) # output all the values