你还可以编写自定义函数来实现保留小数位的功能。 def fix_decimal_places(array, decimal_places): factor = 10 decimal_places return [int(num * factor) / factor for num in array] array = [1.12345, 2.6789, 3.14159] fixed_array = fix_decimal_places(array, 2) print(fixed_array) # 输出: [1....
2. Modifying strings: Apart from trying to access certain characters inside a string, we might want to change them in case they’re incorrect and we want to fix it, or in case we want to communicate a different thing. Slicing won’t be useful for this, as strings areimmutabledata types...
以上代码中,我们定义了一个名为truncate_float()的函数,该函数接受两个参数:num为要进行截断的浮点数,decimal_places为要保留的小数位数。函数内部通过将浮点数拆分为整数部分和小数部分,然后截断小数部分,并将结果返回。 使用示例: 代码语言:txt 复制 num = 3.141592653589793 decimal_places = 3 result = trunc...
On the other hand, you can quickly fix this by converting fractions to floating-point numbers, especially as you don’t need to care about precision in such a scenario.If you’re working in a Jupyter Notebook, then you might want to render LaTeX formulas based on your fractions instead ...
Fortunately, the new f-strings in Python 3.12 also fix this problem: Python >>> # Python 3.12 >>> employee = { ... "name": "John Doe", ... "age": 35, ... "job": "Python Developer", ... } >>> f"Storing employee's data: { ... employee["name"].upper() # ...
['meta_data'], user=user, url=url) # best fix from functools import partial def transaction(user_data, user_files): user = None with transaction.atomic(): user = User.objects.create(**user_data) Account.objects.create(user=user, balance=0) # rest of user creation proccess # partials...
['meta_data'],user=user,url=url)# best fixfromfunctoolsimportpartialdeftransaction(user_data,user_files):user=Nonewithtransaction.atomic():user=User.objects.create(**user_data)Account.objects.create(user=user,balance=0)# rest of user creation proccess# partials create a callable with the ...
F-Strings sind String-Literale mit dem Präfix "f" oder "F", die Ausdrücke innerhalb geschweifter Klammern {} enthalten. Diese Ausdrücke werden zur Laufzeit ausgewertet und dann mit dem __format__ Protokoll formatiert. Im Gegensatz zu traditionellen String-Formatierungsmethoden bieten ...
c = round(c, 2) # "Fix" result (???) print(c) if __name__ == '__main__': round_num() 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. ...
# fix the seed so that we will get the same results # feel free to change it or comment out the line random.seed(1) # GA parameters PARAM_NAMES = ["fast_period", "slow_period", "signal_period"] NGEN = 20 NPOP = 100 CXPB = 0.5 ...