yibo52201楼•4 个月前
还是以上面例子举例,goverter包通过interface定义的方式,先让你预定义这个结构体,然后会生成转换函数。后续该专栏将深挖这个包的实现,并用该包+语法生成的知识实现一个预定义的结构体深拷贝包。 ---// goverter:converter type Converter interface { // goverter:autoMap Address Convert(Person) FlatPerson 反射流...
value :=reflect.ValueOf(num)//可以理解为“强制转换”,但是需要注意的时候,转换的时候,如果转换的类型不完全符合,则直接panic//Golang 对类型要求非常严格,类型一定要完全符合//如下两个,一个是*float64,一个是float64,如果弄混,则会panicconvertPointer := pointer.Interface().(*float64) convertValue :=val...
Cannot convert expression of type ‘interface{}’ to type ‘string’ 解决流程 ...//body是json数据body,err:=ioutil.ReadAll(xxx)//创建map[],给map[]申请一块内存空间res:=make(map[string]interface{})//把json数据转为map无序key-value键值对json.Unmarshal(body,&res)//把interface{}类型转为int...
packagemainimport"fmt"funcmain(){vardatainterface{}=66// 断言将接口值转换为int类型，输出：Convert...
{ return m, nil } // 如果断言失败,返回错误 return nil, errors.New("cannot convert to map[string]interface{}") } func main() { // 示例数据 exampleData := map[string]interface{}{ "key1": "value1", "key2": 42, "key3": true, } // 调用anyToMap函数 result, err := anyToMap...
myMap=make(map[int]int)locksync.Mutex ) func test(nint) { res:=0fori:=1;i<=n;i++{ res+=i }lock.Lock() myMap[n]=reslock.Unlock() } func main(){fori:=1;i<=200;i++{ go test(i) } time.Sleep(time.Second*10)lock.Lock()fori,v:=range myMap{ ...
encoding/json: Unmarshal map[string]interface{} target mishandled when passed as an interface{} #33487 (closed) encoding/json: fix Unmarshal of value assigned to an interface variable. encoding/json: resolve struct, map, array, or slice values in interface types ...
onQuitfunc(err error)connections sync.Map// key=fd, value=connection}// Run this server.func(s*server)Run()(err error){s.operator=FDOperator{FD:s.ln.Fd(),OnRead:s.OnRead,OnHup:s.OnHup,}// 从pollmanager中选择出来一个epoll,来管理server fd,也就是设置mainReactors.operator.poll=pollman...
= map[string]interface{}{ "name": "Some User", "age": 35, "address": map[string]string{ "street": "Random St", "city": "Some town", "state": "Some state", "zip": "12345", }, } // Convert the map to JSON jsonContent, err := json.MarshalIndent(map1, "", " ") if ...