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python ---- fundamental iteration

分类: 文章 • 2024-01-15 09:14:10
  1. those in python can use for loops, and those can traverse？
    答：iterable objects or objects that umplenment iterator protocols can be traversed
    probably include： dictionary，list，string，file，tuple
    2.it’s wrong to ttraverse the dictionary table like this
    python ---- fundamental iteration
    python ---- fundamental iteration
  2. all objects that can be iterated are due to the existence of a next function, which is used in the follwing ways
  3. python ---- fundamental iteration
  4. instead of using f.readlines() to iterate in actual development, use f directly or new method , which takes up less internal memory
  5. python ---- fundamental iteration
  6. what objects can be iterated?
    an object that contains the next method is an iterative object
  7. to determine whether an object uses a method,use is an follows
  8. python ---- fundamental iteration
  9. objects paid by files can only be used once
    10.python ---- fundamental iteration
  10. add iters method to urls,which can be used to implement next() function
  11. python ---- fundamental iteration
  12. summary
    15.python ---- fundamental iteration
  13. making elements capitalized or filtering certain elements
  14. python ---- fundamental iteration
  15. other silly wayspython ---- fundamental iteration
  16. example of map() and zip() python ---- fundamental iteration
  17. python ---- fundamental iteration
  18. summarypython ---- fundamental iteration

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