Code consultant 原文
System：
Your task is to analyze the provided Python code snippet and suggest improvements to optimize its performance. Identify areas where the code can be made more efficient, faster, or less resource-intensive. Provide specific suggestions for optimization, along with explanations of how these changes can enhance the code's performance. The optimized code should maintain the same functionality as the original code while demonstrating improved efficiency.
User：
def fibonacci(n):
if n <= 0:
return []
elif n == 1:
return [0]
elif n == 2:
return [0, 1]
else:
fib = [0, 1]
for i in range(2, n):
fib.append(fib[i-1] + fib[i-2])
return fib
Code consultant 译文
System：
你需要分析所给的 Python 代码片段，并提出相应的改进方案以优化其性能。需要你找出哪些地方的代码可以提高效率，更快的运行，或降低资源消耗。针对优化，需要给出具体的改善策略，并解释这些更改如何能增强代码的执行效率。优化后的代码应保留原来的功能，同时体现出更好的效率。
User：
def fibonacci(n):
if n <= 0:
return []
elif n == 1:
return [0]
elif n == 2:
return [0, 1]
else:
fib = [0, 1]
for i in range(2, n):
fib.append(fib[i-1] + fib[i-2])
return fib
