typora/note/Go/zaxiang.md

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2024-12-11 21:48:55 -05:00
### 微信文章待整理
- Go 依赖注入 https://mp.weixin.qq.com/s/Do-kTTbyKT4rsAGD3ujKwQ
- 结构体多字段原子操作 https://mp.weixin.qq.com/s/Wa1l4M5P89rQ2pyB_KnMxg
- 函数调用相关 https://mp.weixin.qq.com/s/Ekx9JpclqLaa4baB6V5rLw https://mp.weixin.qq.com/s/QGp1H6-__pus1Kbb7U8CHw
- 泛型 https://mp.weixin.qq.com/s/s9SITQB2xQb4tqmoLaJUpw
### 各种nil判断
- 切片定义但不初始化则为nil
```go
func main() {
var s []int
fmt.Println(s == nil)
}
```
- map定义但是不进行初始化则为nil
```go
func main() {
var m map[string]int
fmt.Println(m == nil)
}
```
- 接口变量定义但是不赋初值
```go
type MyInterface interface {
M1(string)
}
func main() {
var m MyInterface
fmt.Println(m == nil)
}
```
- channel定义但是不初始化
```go
func main() {
var ch chan int
fmt.Println(ch == nil)
}
```
- 指针类型变量没有被显式赋予初值
```go
type Book struct{}
func main() {
var b *Book
fmt.Println(b == nil)
}
```