split分割

tset("aaaa,,,aaaa")
        tset("aaaa,,,")
        tset(",,,aaaa")
        tset(",,,")
        tset("")

    fun tset(test: String) {
        DebugLog.d("arrayarray", test)
        var array = test.split(",,,")
        DebugLog.d("arrayarray", array.size.toString())
        for ((i, a) in array.withIndex()) {
            DebugLog.d("arrayarray", "$i|||$a")
        }
        DebugLog.d("arrayarray", "=======")

    }

arrayarray: aaaa,,,aaaa
arrayarray: 2
arrayarray: 0|||aaaa
arrayarray: 1|||aaaa
arrayarray: =======
arrayarray: aaaa,,,
arrayarray: 2
arrayarray: 0|||aaaa
arrayarray: 1|||
arrayarray: =======
arrayarray: ,,,aaaa
arrayarray: 2
arrayarray: 0|||
arrayarray: 1|||aaaa
arrayarray: =======
arrayarray: ,,,
arrayarray: 2
arrayarray: 0|||
arrayarray: 1|||
arrayarray: =======
arrayarray: 1
arrayarray: 0|||
arrayarray: =======

split只要是有分割符就会产生一个两个参数的数组