/
main.go
80 lines (67 loc) · 1005 Bytes
/
main.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
package main
import (
"fmt"
)
type User struct {
name string
}
type Obj struct {
Val int
}
func GetUsername(u *User) string {
p := new(User)
p.name = "John"
fmt.Println(p.name)
return u.name
}
func closure() {
x := "hello"
fn := func() {
fmt.Println(x)
}
fn()
}
func loop() {
m := map[string]string{
"a": "A",
"b": "B",
"c": "C",
}
for k, v := range m {
fmt.Println(k, v)
}
}
func escapeSimple() int {
i := 1
j := i + 1
return j
}
func printObj(objs []*Obj) {
for _, v := range objs {
defer fmt.Println("a=", v.Val)
defer func() {
fmt.Println("b=", v.Val)
}()
}
}
// const Ki = 1024
// const Mi = 1024 * Ki
// func largeObj() {
// large := make([]byte, 64*Ki-1)
// for i := 0; i < cap(large); i++ {
// large[i] = byte(1)
// }
// }
type Array [1]int64
func largeArray() {
var arr Array
fmt.Println(arr)
}
func main() {
fmt.Println(escapeSimple())
objs := []*Obj{
&Obj{1}, &Obj{2}, &Obj{3}, &Obj{4}, &Obj{5},
}
printObj(objs)
largeArray()
}