A solution to [error] LD returned 1 exit status

[Error] LD Returned 1 Exit Status
[Error] LD returned 1 exit status
Two. Practical operation three. How do you prevent such mistakes?4. Leave a message

[Error] LD returned 1 exit status

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The function is used elsewhere without a parameter
Two. Practical operation

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4. The most important thing is to have patient
Three. How to prevent this kind of mistake?
1. When customizing the function name, you can do this:

Example: I want to define a function, which is the main menu. I can change the function name into pinyin zhu_cai_dan or the phonetic order of each word ZCD

4. Leave a message
1. No exit to
2. If you think that can help support oh
3. [Error] LD returned 1 exit status <>>


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