n=input("Please enter a string:") def rvs(n): if n=="": return n else: return rvs(n[1:])+n[0]
时间: 2024-06-03 15:07:08 浏览: 9
This code defines a function called "rvs" that takes a string argument "n" and recursively reverses it. The function checks if the string is empty and returns it as is if it is. Otherwise, it calls itself with the substring of "n" starting from the second character and concatenates the first character at the end. This process continues until the entire string is reversed.
However, there is an error in the code as the last line of the function is not indented properly and is not part of the function. It should be removed or indented to be part of the function.
相关问题
def fact(n): if n == 0: return 1 else: return n * fact(n-1) s = input("请输入一个整数:") fact(s)
您的代码中存在一些问题。首先,输入的值应该转换为整数类型。其次,函数返回的结果应该打印出来,而不是直接调用函数。
以下是修正过的代码:
```python
def fact(n):
if n == 0:
return 1
else:
return n * fact(n-1)
s = input("请输入一个整数:")
n = int(s)
print(fact(n))
```
这段代码可以计算输入整数的阶乘。
def pow(xn):for i in range(D:×*=xreturn x x=input("x=:")n=input("s=:")r=pow(x,n)print(r)
As an AI language model, I cannot run this code because it contains errors. However, I can see that the following changes should be made to correct the code:
1. The `D` in the `range()` function should be replaced with `n` to match the variable name used in the `input()` function.
2. The multiplication operator `×` should be replaced with `*` to perform the exponentiation operation.
3. The `pow()` function should return the final value of `x` after all iterations of the loop have been completed.
4. The indentation of the last two lines of code should be corrected to match the indentation of the `pow()` function.
Here is the corrected code:
def pow(x, n):
for i in range(n):
x *= x
return x
x = int(input("x=:"))
n = int(input("s=:"))
r = pow(x, n)
print(r)
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