var str="[2021-04-26, 2021-04-27, 2021-04-28, 2021-04-29, 2021-04-30, 2021-05-01, 2021-05-02, 2021-05-03, 2021-05-04, 2021-05-05, 2021-05-06, 2021-05-07, 2021-05-08, 2021-05-09, 2021-05-10, 2021-05-11, 2021-05-12, 2021-05-13, 2021-05-14, 2021-05-15, 2021-05-16, 2021-05-17, 2021-05-18, 2021-05-19, 2021-05-20, 2021-05-21, 2021-05-22, 2021-05-23, 2021-05-24, 2021-05-25]"
var a=str.split("[")
var b=a[1].split("]")
var newStr=b[0]
var arr=newStr.split(',')
前面会多出空格for循环trim去掉

 

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