问个关于数组的问题

Wind2010

1. shizi_text = [0]
   
2. shizi_text[1] = 5
   
3. p shizi_text #=>[0,5]
   
4. shizi_text[1] = nil
   
5. p shizi_text #=>[0,nil]

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怎么才能删除数组的某个数字？第5行应该改成什么，才能让第6行弹出"[0]"？

enghao_lim

1. shizi_text = [0]
   
2. shizi_text[1] = 5
   
3. p shizi_text #=>[0,5]
   
4. shizi_text.delete_at(1) # 删除位置2的元素
   
5. p shizi_text # => [0]
   
6. shizi_text[1] = 5
   
7. shizi_text[2] = 5
   
8. p shizi_text # => [0,5,5]
   
9. shizi_text.delete(5) # 删除所有的5
   
10. p shizi_text #=>[0]

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