Initial commit: Python learning project with examples and exercises

2025-07-20 17:08:50 +08:00
commit bc7bb56271
111 changed files with 11535 additions and 0 deletions
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+#5.6.3
+def fib(n):
+    if n==1 or n==2:
+        return 1
+    elif n>2:
+        return fib(n-1)+fib(n-2)
+    else:
+        return "斐波那契数列输入错误！请重新输入"
+
+a = int(input())
+print(fib(a))