词汇精选：label的用法和辨析

一、详细释义：,n.,标签；签条；标记,例句：,Put a label on your luggage.,在你行李上做个标记。,例句：,The old thrunk was plastered with hotel labels.,这只旧皮箱贴满了旅馆的标签。,（不恰当的）称谓；绰号；叫法,例句：,He has been given a label of "playboy" by his friends.,他的朋友给他起了一个“ *** ”的绰号。,唱片公司,例句：,It's his first release for a major label.,这是他在大唱片公司发行的第一张唱片。,v.,贴标签于；用标签标明 [T],例句：,The bottle is labeled poison.,瓶子上表明有毒。,例句：,The noun is labeled as uncountable in the dictionary.,这个名词在这本字典里注为不可数名词。,（尤指不公正地）把...称为 [T],例句：,Certain estates are labelled as undesirable.,某些物业被归入不受欢迎之列。,例句：,He was labeled as a turncoat.,人们称他为叛徒。,二、词义辨析：,label,tag,这两个名词均含“标签”之意。label指上面标明货主姓名、地址及货物名称、重量、尺寸等内容的标签。tag多指临时系上的标签。,三、相关短语：,gummed label,涂胶标签,四、参考例句：,Label your emotions appropriately.,识别出自己的情绪。,Please unveil the label firstly.,请先揭开标签。,Attractive label is very necessary.,具有吸引力的标签非常必要。,His work is difficult to label accurately.,他的工作很难准确归类。,It says 'Dry clean' on the label.,He attached a label to his baggage.,他往行李上系了一个标签。,He attached the label to his trunk.,他把这个标签系在他的箱子上。,Stick a label on your suitcase.,把标签粘贴在你的手提箱上.,Put a label on your luggage.,在你行李上贴个标签。,Please remember to label your luggage.,记住在你行李上做个标记。

从tag这个名字就可以看出，这是一个标签属性，或者说是附注、标注、说明，一般情况下是没什么作用的，但是可以用它来保存一些临时性的数据，这样可以不用另外定义临时变量。你说的例子就是这样，是把obj这个对象的大小和位置临时保存在tag属性里，在后面的语句里就可以随时调用了。

鹏仔微信 15129739599 鹏仔QQ344225443 鹏仔前端 pjxi.com 共享博客 sharedbk.com