移除Map中指定的键值对

// map中key（键）的迭代器对象
Iterator<String> iterator = myMap.keySet().iterator();
while (iterator.hasNext()){// 循环取键值进行判断
    String key = iterator.next();// 键
    if(key.startsWith("week")){
        iterator.remove();// 移除map中以week字符开头的键对应的键值对
    }
    if(key.startsWith("lessonNo")){
        iterator.remove();// 移除map中以lessonNo字符开头的键对应的键值对
    }
}



来源:https://blog.csdn.net/qq_37584445/article/details/88681622