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fix: coding style and file format for all example.

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This commit is contained in:
Bo-Yi Wu
2017-02-11 12:34:46 +08:00
parent f215102638
commit 416e29d95a
206 changed files with 5531 additions and 5451 deletions
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60
eBook/examples/chapter_6/mut_recurs.go
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@@ -1,27 +1,33 @@
// mut_recurs.go
package main
import (
"fmt"
)
func main() {
fmt.Printf("%d is even: is %t\n", 16, even(16)) // 16 is even: is true
fmt.Printf("%d is odd: is %t\n", 17, odd(17)) // 17 is odd: is true
fmt.Printf("%d is odd: is %t\n", 18, odd(18)) // 18 is odd: is false
}
func even(nr int) bool {
if nr == 0 {return true}
return odd(RevSign(nr)-1)
}
func odd(nr int) bool {
if nr == 0 {return false}
return even(RevSign(nr)-1)
}
func RevSign(nr int) int {
if nr < 0 {return -nr}
return nr
}
// mut_recurs.go
package main
import (
"fmt"
)
func main() {
fmt.Printf("%d is even: is %t\n", 16, even(16)) // 16 is even: is true
fmt.Printf("%d is odd: is %t\n", 17, odd(17)) // 17 is odd: is true
fmt.Printf("%d is odd: is %t\n", 18, odd(18)) // 18 is odd: is false
}
func even(nr int) bool {
if nr == 0 {
return true
}
return odd(RevSign(nr) - 1)
}
func odd(nr int) bool {
if nr == 0 {
return false
}
return even(RevSign(nr) - 1)
}
func RevSign(nr int) int {
if nr < 0 {
return -nr
}
return nr
}