Question

Java中map("学号","001,002,003,004,005")如何把map中value的值一个个取出来变为001,002,003,004,005

Java中map("学号","001,002,003,004,005")如何把map中value的值一个个取出来变为001,002,003,004,005，而不是变成一个数组把整个value取出来。

Answer 1

map.get("学号").split(",")[0] //001
map.get("学号").split(",")[1] //002
map.get("学号").split(",")[2] //003
map.get("学号").split(",")[3] //004
map.get("学号").split(",")[4] //005