Go language test code

Learn the go language for the first time, test the code

Package MainImport "FMT"var age int;const sex=0func init () {FMT. Println ("Mr_man") Age= 9FMT. Println (age)}func main () {FMT. Println ("Hello World", Sex) xxx () fmt. Println ("=========================") const LENGTH int= 10const WIDTH INT= 5var area int const A, B, C= 1, False,"Str" Area= LENGTH *WIDTH FMT. Printf ("area is:%d", area) println () println (A, B, c) println ("========================") Compute () compare () Focuss () Maxx (2, 3) Showyanghuitriangle () Mei ()}func xxx () {fmt. Println ("Mr_zhang") fmt. Println ("I'm the one that was triggered in the main function.") const (a=Iota B c D="ha"E F= 100G H=iota i) fmt. Println (A, B, C, D, E, F, G, H, i)}func compute () {var a int= 21var b int= 10var c int c= A +FMT B. Printf ("first row-the value of C is:%d \ n", c) C= A-FMT B. Printf ("second row-the value of C is:%d \ n", c) C= A *FMT B. Printf ("third row-the value of C is:%d \ n", c) C= A/FMT B. Printf ("line fourth-the value of C is:%d \ n", c) C= a%FMT B. Printf ("Line Fifth-the value of C is:%d \ n", c) a++FMT. Printf ("line Sixth-the value of C is:%d \ n", a) a= 21a--FMT. Printf ("the value of line Seventh-C is:%d \ n", a)} Func compare () {var a int= 21var b int= 10if(A = =b) {fmt. Printf ("first line-a equals b \ n")    } Else{fmt. Printf ("first line-A is not equal to B \ n")    }    if(A <b) {fmt. Printf ("second row-a less than B")    } Else{fmt. Printf ("second row-A is not less than b \ n")    }    if(A >b) {fmt. Printf ("line three-a greater than B \ n")    } Else{fmt. Printf ("Line Three-A is not much more than b \ n")} a= 5b= 20if(A <=b) {fmt. Printf ("Line Fourth-A is less than or equal to B \ n")    }    if(b >=a) {fmt. Printf ("Line Fifth-B is greater than or equal to a \ n")}}func Focuss () {var a int= 4var b int32 var c float32 var ptr*int FMT. Printf ("first row-the type of a variable =%T \ n", a) fmt. Printf ("second row-b variable type =%T \ n", b) fmt. Printf ("line three-c variable type =%T \ n", c) PTR= &a FMT. Printf ("A has a value of%d \ n", a) fmt. Printf ("*ptr is%d \ n", *ptr)} Func Maxx (NUM1, num2 int) int {fmt. Println ("===========>maxx") var result intif(Num1 >num2) {Result=NUM1}Else{result=num2} fmt. PRINTLN (Result)returnresult}//number of rows const LINES int= 10//Yang Hui triangle func showyanghuitriangle () {nums:=[]int{} forI: = 0; i < LINES; i++ {        //Fill Blank forJ: = 0; J < (Lines-i); J + +{fmt. Print (" ")        }         forJ: = 0; J < (i + 1); J + +{var length=Len (nums) var value intifj = = 0 | | j = =I {value= 1            } Else{Value= Nums[length-i] + nums[length-i-1]} nums=Append (nums, value) fmt. Print (Value," ")} FMT. Println ("")}}func Mei () {var n [10] int var i, J int fori = 0; I < 10; i++{N[i]= i + 100    }     forj = 0; J < 10; J + +{fmt. Printf ("element[%d] =%d\n", J, N[j])}}

Go language test code