java java中如何通过Map的key获得它的value?

java中如何通过Map的key获得它的value?Map<string,string> maps=new HashMap<string,string>()//获取密钥集set<s

java中如何通过Map的key获得它的value?

Map<string,string> maps=new HashMap<string,string>()//获取密钥集set<string> keyset=地图.keySet()//遍历键集以获取(string key:keyset){string value}=地图。获取(键)