Similarly, if a double comma is entered as user data, then the channel exit at that position in the list will get user data consisting of a blank String.
类似地,如果输入两个逗号作为用户数据,那么列表中该位置的通道出口将获取由空白字符串组成的用户数据。
2
I cheated and discovered that there was a comma in position 4 of every row in the table that's how I knew to use a three character length in my SUBSTR.