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上下文选择器

  1. 父子: > (仅限父子)


  2. 后代: 空格 (后级所有元素,包括子集,孙子,重孙…)

  3. 兄弟: + (相邻的下一个元素,紧跟的且只有一个)

  4. 同级: ~(与当前元素同级的后面的全部元素)

Correcting teacher:PHPzPHPz

Correction status:qualified

Teacher's comments:
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