求问在excel的一个单元格里随机生成 四组时间，7点半到8点，11点半到12点，12点半到13点，17点半到18点

Question

例
07:30,11:43,13:18,17:33

Answer 1

=TEXT(TIME(7,INT(RAND()*31)+30,0),"hh:mm,")&TEXT(TIME(11,INT(RAND()*31)+30,0),"hh:mm,")&TEXT(TIME(12,INT(RAND()*31)+30,0),"hh:mm,")&TEXT(TIME(17,INT(RAND()*31)+30,0),"hh:mm")