【hackerrank】-Day 16: Exceptions - String to Integer

尴尬，为什么我的解法不过？报错：Error reading result file.You should use exception handling concepts.
看着解法没问题啊？啥子情况？———–已经解决了，因为加的if判断导致的一直报上面的错！去掉if判断就好了。

30-exceptions-string-to-integer

Objective
Today, we’re getting started with Exceptions by learning how to parse an integer from a string and print a custom error message. Check out the Tutorial tab for learning materials and an instructional video!

Task
Read a string, , and print its integer value; if cannot be converted to an integer, print Bad String.

Note: You must use the String-to-Integer and exception handling constructs built into your submission language. If you attempt to use loops/conditional statements, you will get a score.

Input Format

A single string, .

Constraints

, where is the length of string .
is composed of either lowercase letters () or decimal digits ().
Output Format

Print the parsed integer value of , or Bad String if cannot be converted to an integer.

Sample Input 0

3
Sample Output 0

3
Sample Input 1

za
Sample Output 1

Bad String
Explanation

Sample Case contains an integer, so it should not raise an exception when we attempt to convert it to an integer. Thus, we print the .
Sample Case does not contain any integers, so an attempt to convert it to an integer will raise an exception. Thus, our exception handler prints Bad String.

---

Current Buffer (saved locally, editable)

#!/bin/python3
import sys
S = input().strip()
try:
    int_S = int(S)
    print(int_S)
except ValueError:
    print('Bad String')

下面的是之前失败的写法，和上面的对比就是在if判断了，去掉if判断就可以了。

#!/bin/python3
import sys
S = input().strip()
if len(S)<1 or len(S) > 6:
    print("len(S)<1 or len(S) > 6")    
try:
    int_S = int(S)
    print(int_S)
except Exception as ex:
    print('Bad String')
    # ex_type, ex_val, ex_stack = sys.exc_info()
    # print(ex_type)
    # print(ex_val)
    # for stack in traceback.extract_tb(ex_stack):
    #      print(stack)

Wrong Answer :(

Your code did not pass all the sample testcases.

Testcase 0 Testcase 1 Testcase 2 Testcase 3
Input (stdin)
3
Your Output (stdout)
3
Expected Output
3
Compiler Message
Error reading result file.You should use exception handling concepts.