Project1

标题: 问个关于数组的问题 [打印本页]
作者: Wind2010    时间: 2010-12-24 23:16
标题: 问个关于数组的问题
  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]"？
作者: enghao_lim    时间: 2010-12-25 09:15
  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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