go语言自己没有相似php中得array_merge的函数,没法直接实现多个数组的合并
可是这类操做在平常开发中真的是很常见,
有两种方案完成这个操做php
1:append()
这个函数当然能够完成以上操做,可是使用append意味着遍历数组,意味着slice长度的动态扩展
只能说这招很笨
2:copy()
func copy数组
func copy(dst, src []Type) intapp
The copy built-in function copies elements from a source slice into a destination slice. (As a special case, it also will copy bytes from a string to a slice of bytes.) The source and destination may overlap. Copy returns the number of elements copied, which will be the minimum of len(src) and len(dst).函数
因此在使用copy的时候必定要防止重叠学习
具体内容不赘述,上代码:ui
package tool type CommonFunc struct{} var commonFunc CommonFunc func (c *CommonFunc) Merge(s ...[]interface{}) (slice []interface{}) { switch len(s) { case 0: break case 1: slice = s[0] break default: s1 := s[0] s2 := commonFunc.Merge(s[1:]...)//...将数组元素打散 slice = make([]interface{}, len(s1)+len(s2)) copy(slice, s1) copy(slice[len(s1):], s2) break } return }