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【Golang】golang中map元素的删除和清空
2022-07-24 11:06:00 【陶士涵】
当我们想把一个map元素完全清空的时候
可以直接赋值一个新的map过去就可以了,Go语言中并没有为 map 提供任何清空所有元素的函数、方法,清空 map 的唯一办法就是重新 make 一个新的 map,不用担心垃圾回收的效率,Go语言中的并行垃圾回收效率比写一个清空函数要高效的多。
使用 delete() 函数从 map 中删除键值对
使用 delete() 内建函数从 map 中删除一组键值对,delete() 函数的格式如下:
delete(map, 键)
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