Golang Engineer Interview Fourth day

This is a creation in Article, where the information may have evolved or changed. **1**. There are n categories of products in the mall, from high to low by price, if the same price is sorted by production date, the price is reserved after the decimal point two "' Gopackage mainimport (" FMT ") type shop struct {price float32date String}func Main () {shops: = []shop{{1, "222"}, {7, "222"}, {3, "222"},{4, "222"}, {5, "2018/1/21"}, {5, "2018/1/20"},{5, "2018/1/16"},{5, "2018/1/19"}} num: =len (Shops)//By Price bubble sort the goods from low to high, if the price is the same, judging the date, by the early to late sort for i:=0;i<num;i++ {for J: =i+1;j<num;j++ {ifshops[i]. Price >shops[j]. price{Shops[i],shops[j] =shops[j],shops[i]}else if shops[i]. Price ==shops[j]. Price{if Shops[i]. Date >shops[j]. Date {shops[i],shops[j] =shops[j],shops[i]}}}}fmt. Println (Shops)} "**2**. Invert the string around the Mirror" ' Gopackage mainimport ("FMT") func main () {str: = "abcdef" runes: = []rune (str) L: = Len (runes) for I, J: = 0, L; I < J; I, j = i+1, j-1 {runes[i], runes[l-1-i] = Runes[l-1-i], runes[i]fmt. Println (String (runes)}} "" **3**. Talk about the understanding of the Beego framework, how the route is going, beego the idea of design, **4**. The idea of Beego is well known bee function **5**. A brief description of the channel, Goroutine and interface in go, requiring familiarity with the underlying source **6** learn some microservices 641 reads