jianglilili / jianglilili/guodegang.github.io
List、Set、Map集合三者之间的区别
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### [List、Set、Map集合三者之间的区别](https://blog.csdn.net/gavinli2588/article/details/78696048)
- List中的元素,有序、可重复、可为空;
- Set中的元素,无序、不重复、只有一个空元素;
- Map中的元素,无序、键不重,值可重、可一个空键、多可空值。
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