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This article mainly explains the "Python list list and dictionary dict related operations", the article explains the content is simple and clear, easy to learn and understand, now please follow the editor's ideas slowly in depth, together to study and learn "Python list list and dictionary dict related operations have" it!

Topic 1 given a list of strings, find the one in which the length of the string is greater than 2 and the first character is the same as the last character, and return the index position. 2 there is a list of two letters pgraine Q, given a number such as n, and then appending 1 to n after the two letters to form a new list. Input: 4, output: ['p1lists,' Q1lists, 'p2lists,' Q2lists, 'p3lists,' Q3lists, 'p4lists,' q4'] 3 combine two lists into a list composed of dictionaries, where the name of the list is k, each value is v, and one-to-one input: color_name = ["Black", "Red", "Maroon", "Yellow"]

Color_code = ["# 000000", "# FF0000", "# 800000", "# FFFF00"]

Output: [{'color_name':' Black', 'color_code':' # 000000'}, {'color_name':' Red', 'color_code':' # FF0000'}, {'color_nam

Answer: 'Maroon',' color_code':'# 800000'}, {'color_name':' Yellow', 'color_code':' # FFFF00'}]

By the way, I deliberately left out the key line in the code of each solution, so you can try to complete it yourself and write it to the comments section.

1def match_words (words):

Ctr = 0

For word in words:

# add this sentence

Ctr + = 1

Return ctr

Print (match_words (['abc',' xyz', 'aba',' 1221']) 2my_list = ['paired,' q']

N = 4

New_list =? # DE8UG hint: consider string concatenation within a certain range

Print (new_list) 3color_name = ["Black", "Red", "Maroon", "Yellow"]

Color_code = ["# 000000", "# FF0000", "# 800000", "# FFFF00"]

Print ([{'color_name': f,' color_code': c} for f, c in?]) # DE8UG hint: zip give it a try?

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