The if statement looks as it does in C or Java, except that the ( ) are gone and the { } are required.
(Sound familiar?)
package main import ( "fmt" "math" ) func sqrt(x float64) string{ if x < 0 { return sqrt(-x) + "i" } return fmt.Sprint(math.Sqrt(x)) } func main() { fmt.Println(sqrt(2), sqrt(-4)) }
原文：http://www.cnblogs.com/ghgyj/p/4052991.html