Python扩大递归最大限度

sys.getrecursionlimit()
sys.setrecursionlimit(limit)

实验代码展示:

# import sys
# sys.setrecursionlimit(99999)

def accumulativeSum(N):
    if N <= 1:
        return 1
    else:
        return N+accumulativeSum(N-1)

print(accumulativeSum(1998))

控制台结果输出:

Windows PowerShell
版权所有 (C) Microsoft Corporation。保留所有权利。

尝试新的跨平台 PowerShell https://aka.ms/pscore6

加载个人及系统配置文件用了 724 毫秒。
(base) PS C:UserschenxuqiDesktopnewstest>  & 'D:Python37python.exe' 'c:Userschenxuqi.vscodeextensionsms-python.python-2021.10.1365161279pythonFileslibpythondebugpylauncher' '9778' '--' 'c:UserschenxuqiDesktopnewstesta.py'
Traceback (most recent call last):
  File "c:UserschenxuqiDesktopnewstesta.py", line 10, in       
    print(accumulativeSum(1998))
  File "c:UserschenxuqiDesktopnewstesta.py", line 8, in accumulativeSum
    return N+accumulativeSum(N-1)
  File "c:UserschenxuqiDesktopnewstesta.py", line 8, in accumulativeSum
    return N+accumulativeSum(N-1)
  File "c:UserschenxuqiDesktopnewstesta.py", line 8, in accumulativeSum
    return N+accumulativeSum(N-1)
  [Previous line repeated 995 more times]
  File "c:UserschenxuqiDesktopnewstesta.py", line 5, in accumulativeSum
    if N <= 1:
RecursionError: maximum recursion depth exceeded in comparison
(base) PS C:UserschenxuqiDesktopnewstest> 

实验代码展示:

import sys
sys.setrecursionlimit(99999)

def accumulativeSum(N):
    if N <= 1:
        return 1
    else:
        return N+accumulativeSum(N-1)

print(accumulativeSum(1998))

控制台结果输出:

Windows PowerShell
版权所有 (C) Microsoft Corporation。保留所有权利。

尝试新的跨平台 PowerShell https://aka.ms/pscore6

加载个人及系统配置文件用了 753 毫秒。
(base) PS C:UserschenxuqiDesktopnewstest>  & 'D:Python37python.exe' 'c:Userschenxuqi.vscodeextensionsms-python.python-2021.10.1365161279pythonFileslibpythondebugpylauncher' '9768' '--' 'c:UserschenxuqiDesktopnewstesta.py'
1997001
(base) PS C:UserschenxuqiDesktopnewstest>