淡出构造器无效安全

淡出高山市
  1. [整数?持续时间万事通
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实现

fadeOut([int+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}