While loop exercise 23

Practice one, displaying all the elements in the specified list, individually;

Method one in [+]: l1out[25]: [1, 2, 3, 4]in []: while L1: ....: Print L1[0] ....: L1.pop (0) ....: 1234//method Two in [countout[67]: Count = 0In []:]: 0In [L1[count]: While Count < Len (L1): ....: Print] ....: Coun T + = 1 .....: 1234

Exercise two, ask for the sum of all even numbers within 100;

In [215]: sum = 0;         i = 0In [216]: While I <=: I+=1 .....: If I% 2 = = 0: ....: sum = Sum +i ....: In [217]: Print sum2550

Exercise three, display all the values of the specified dictionary one by one, and indicate the total number of keys after the results are displayed;

In [the]: print d1{' y ':, ' X ': 2, ' z ': 90}in [+]: while Keylist: ....: Print Keylist[0] ....: Keylist.pop (0) .....: Else: ....: Print len (D1) ....: yxz3

Exercise four, create a list containing all the odd numbers within 100;

In [max]: L1 = []in]: x = 1In [98]: While X <: ....: L1.append (x) ....: x + = 2 ....: in [99]: Print L1[1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31, 33, 35, 37, 39, 41, 43, 45, 47, 49, 51, 53, 55, 57, 59 , 61, 63, 65, 67, 69, 71, 73, 75, 77, 79, 81, 83, 85, 87, 89, 91, 93, 95, 97, 99]

Exercise five, which shows all the elements of a list in reverse order;

In [the]: L1 = [1,2,3,4]in]: while L1: ....: Print L1[-1] ....: L1.pop () ....: 4321

Exercise six, List l1=[0,1,2,3,4,5,6], list l2=["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat", with the elements in the first list as keys, and the elements in the second list as values to generate a dictionary D1;

in [+]: d1={}in [121]: x=0in [122]: L1=[0,1,2,3,4,5,6]in [123]: l2=["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" in [130 ]: While x < Len (L1): d1[l1[x]] = l2[x] x + = 1 ....: in [131]: Print d1{0: ' Sun ', 1: ' Mon ', 2: ' Tue ', 3: ' Wed ', 4: ' Thu ', 5: ' Fri ', 6: ' Sat '}

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While loop exercise 23