java如何从map中删除元素呢?

map删除元素
      可使用remove方法

Map<String, String> map = new HashMap<String, String>() {
  {
    put("test",  "java265.com-1");
    put("test2", "java265.com-2");
  }
};

for(Iterator<Map.Entry<String, String>> it = map.entrySet().iterator(); it.hasNext(); ) {
    Map.Entry<String, String> entry = it.next();
    if(entry.getKey().equals("test")) {
        it.remove();
    }
}