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Python Data Type#, immutable type - Coggle Diagram

- - - - [start:stop:step] 左闭右开
    - - title() / capitalize() #首写字母大写
      - upper() #全大写
      - count() #数每个字符出现次数
        txt = "I love apples, apple are my favorite fruit"
        x = txt.count("apple")
        print(x)
      - index(' ') #哪个index最先出现要搜索的字符内容
      - String format
        
        { } Formatting with format() string method.
        eg. s = "{ } is handsome, but { } is not"
        print(s.format("Rayman","Jason")
        
        f " " Formatting string with F-Strings(best)
        eg. year = 2016
        event = 'Referendum'
        f'Results of the {year} {event}'
        
        %s Formatting with % Operator
        print('Joe stood up and %s to the crowd.' %'spoke')
        %s for string, 还有 %d for int, %f for float, %b for binary format
      - 还有常用 lower(), replace(), strip()
    - - +
        *
        " " in my_string
  - - - Add: append(), "+", A.extend(B)
      - Delete: pop(), remove() (by value), del() (by index)
      - index(' ') #哪个index最先出现要搜索的内容
      - min(), len(), clear(), insert(), count()
      - Sort() #sorts the list in ascending order
        prices = [589.36, 237.81, 230.87, 463.98, 453.42]
        prices.sort()
        print(prices)
      - Max() #return the highest value from the inputted
        values.prices = [589.36, 237.81, 230.87, 463.98, 453.42]
        price_max = max(prices)
        print(price_max)
      - Reverse() #reverse the order of the list
        fruits = ['apple', 'banana', 'cherry', 'orange', 'pineapple']
        fruits.reverse()
    - - [start:stop:step] 左闭右开
      - Slicing: [0:6] [1:] [:4] [:] [:-1] [-1:] [::2]
        print(list[1:8:-2]