selfteaching / selfteaching/selfteaching-python-camp
Day05 查找find函数用法相关资料的时候，对示例里的运行结果不理解
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- Dominant language
- Python
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- 151
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- 875
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Description
如图看到了如下两段代码：
第一段：
str = "01213456"
if str.find("23"):
print ("YES!")
else:
print ("NO!")
第二段：
str = "01213456"
if str.find("01"):
print("YES!")
else:
print ("NO!")
两段运行的结果分别为1：YES！ 2：NO!
不能理解为什么会出现这种不同。
Contributor guide
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First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
No file or test is named in the issue. Start by checking Python's str.find return values and how integers are evaluated in an if condition; done means explaining why the two examples print different results, preferably with a corrected condition or clearer example.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- python
- Domain
- documentation
- Issue type
- Documentation
- Difficulty
- 2/5
- Estimated time
- 1-3 hours
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 35/100