go (four)

go the usual method

(1) obtain information screen user input

// import package fmt use fmt.ScanIn () or fmt.Scanf () 

var String name 
var Age int 
// the value of the user name entered into the address pointing 
fmt.ScanIn (& name) 
fmt.ScanIn (& Age)

fmt.Println ( "Please enter the user's name, age, separated by spaces divide")

fmt.Scanf("%s %d",&name,&age)

 

if branch

// golang if the support directly define a variable, e.g. 
// if for, conditional statements without using brackets comprising up conditions 
if Age: = 20 is ; Age> 18 is { 
    fmt.Println ( " you have grown up " ) 
}  

 switch

Golang matching items in the back no need to add break

 

// basic syntax of the switch
 // can simultaneously test multiple values may meet the criteria, they are separated by commas, for example: case val1, val2, val3. 
// expression may be any type, and the expression 1 and expression 2, expression 3 can be any value of the same type. Or type is not limited to a constant integer, but must be the same type; or end result is the same type of expression 
switch expression {
     Case expression 1, expression 2, ...: 
        statement blocks 1             
    Case Expression 3, expression 4, ....: 
        statement block 2 
    default : 
        statement block 
}