今天需要写一个算法,获取一串数字中与给定数最接近的数字,代码如下
package main import ( "fmt" ) func main(){ arr:=[]int{12,16,29,34,39,43,55,64,71,89,90,9} zuijin:=get_zuijin(40,arr) fmt.Println(zuijin) } func get_zuijin(this int,arr []int) int{ min:=0 if this==arr[0]{ return arr[0] }else if this>arr[0]{ min = this-arr[0] }else if this<arr[0]{ min = arr[0]-this } for _,v:=range arr{ if v==this{ return v }else if v>this{ if min>v-this{ min = v-this } }else if v<this{ if min>this-v{ min = this-v } } } for _,v:=range arr{ if this+min == v{ return v }else if this-min == v{ return v } } return min }