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update error of describe. (#445)

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This commit is contained in:
aong
2018-03-29 21:38:45 +08:00
committed by jc
parent 2fdd66ac47
commit af797a594f
2 changed files with 18 additions and 18 deletions
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20
eBook/06.3.md
View File

@@ -17,7 +17,7 @@ Greeting("hello:", "Joe", "Anna", "Eileen")
在 Greeting 函数中，变量 `who` 的值为 `[]string{"Joe", "Anna", "Eileen"}`。 在 Greeting 函数中，变量 `who` 的值为 `[]string{"Joe", "Anna", "Eileen"}`。
如果参数被存储在一个数组 `arr` 中，则可以通过 `arr...` 的形式来传递参数调用变参函数。 如果参数被存储在一个 slice 类型的变量 `slice` 中，则可以通过 `slice...` 的形式来传递参数调用变参函数。
示例 6.7 [varnumpar.go](examples/chapter_6/varnumpar.go) 示例 6.7 [varnumpar.go](examples/chapter_6/varnumpar.go)
@@ -29,17 +29,17 @@ import "fmt"
func main() { func main() {
x := min(1, 3, 2, 0) x := min(1, 3, 2, 0)
fmt.Printf("The minimum is: %d\n", x) fmt.Printf("The minimum is: %d\n", x)
arr := []int{7,9,3,5,1} slice := []int{7,9,3,5,1}
x = min(arr...) x = min(slice...)
fmt.Printf("The minimum in the array arr is: %d", x) fmt.Printf("The minimum in the slice is: %d", x)
} }
func min(a ...int) int { func min(s ...int) int {
if len(a)==0 { if len(s)==0 {
return 0 return 0
} }
min := a[0] min := s[0]
for _, v := range a { for _, v := range s {
if v < min { if v < min {
min = v min = v
} }
@@ -51,7 +51,7 @@ func min(a ...int) int {
输出： 输出：
The minimum is: 0 The minimum is: 0
The minimum in the array arr is: 1 The minimum in the slice is: 1
**练习 6.3** varargs.go **练习 6.3** varargs.go
@@ -109,4 +109,4 @@ func F3(s []string) { }
- [目录](directory.md) - [目录](directory.md)
- 上一节：[函数参数与返回值](06.2.md) - 上一节：[函数参数与返回值](06.2.md)
- 下一节：[defer 和追踪](06.4.md) - 下一节：[defer 和追踪](06.4.md)

16
eBook/examples/chapter_6/varnumpar.go
View File

@@ -5,17 +5,17 @@ import "fmt"
func main() { func main() {
x := Min(1, 3, 2, 0) x := Min(1, 3, 2, 0)
fmt.Printf("The minimum is: %d\n", x) fmt.Printf("The minimum is: %d\n", x)
arr := []int{7, 9, 3, 5, 1} slice := []int{7, 9, 3, 5, 1}
x = Min(arr...) x = Min(slice...)
fmt.Printf("The minimum in the array arr is: %d", x) fmt.Printf("The minimum in the slice is: %d", x)
} }
func Min(a ...int) int { func Min(s ...int) int {
if len(a) == 0 { if len(s) == 0 {
return 0 return 0
} }
min := a[0] min := s[0]
for _, v := range a { for _, v := range s {
if v < min { if v < min {
min = v min = v
} }
@@ -25,5 +25,5 @@ func Min(a ...int) int {
/* /*
The minimum is: 0 The minimum is: 0
The minimum in the array arr is: 1 The minimum in the slice is: 1
*/ */