funcTestConvertPointerToSlice(t*testing.T){data:=[]int{1,2,3}varpointerStore[1]uintptrpointerStore[0]=uintptr(unsafe.Pointer(&data))// data pointer to pointerStore[0]// get data header pointervardataHeader=unsafe.Pointer(&pointerStore[0])nums1:=unsafe.Pointer(uintptr(dataHeader)+uintptr(...
= reflect.Slice { return nil } sliLen := sliV.Len() if sliLen == 0 { return nil } if start > sliLen { return nil } if end > sliLen { return sliV.Slice(start, sliLen).Interface() //note:reflect.Value convert to interface } return sliV.Slice(start, end).Interface() }...
// 根据[]struct x的元素个数,创建对应的[]interface yy :=make([]interface{},len(x))// 遍历[]struct x中的每个元素,转换为[]interface y中的每个元素fori, v :=rangex { y[i] = v } https://go.dev/doc/faq#convert_slice_of_interface https://research.swtch.com/interfaces https://stac...
error) {11this.Id +=int(len(p))12this.Name ="interface"13returnthis.Id, nil14}1516func main() {17msg :=new(Msg)18msg.Id =10019msg.Name ="interface test print"2021varname ="Dolly"22fmt.Fprintf(msg,"%s", name)//convert msg, call Write(my func)23fmt.Println...
Slice && v.IsNil() { return nil, nil } s := make([]T, v.Len()) for i := 0; i < v.Len(); i++ { val, err := ToAnyE[T](v.Index(i).Interface()) if err != nil { return nil, err } s[i] = val } return s, nil default: // If input is a single value. v...
{ // 测试 ConvertToString 函数 testCases := []interface{}{ "hello", 123, 3.14, true, []byte("byte slice"), map[string]interface{}{"key": "value"}, 42.0, // float64 类型 false, struct{}{}, // 不支持的类型 } for _, testCase := range testCases { str, err := Convert...
int) (interface{}, error) { // check params v := reflect.ValueOf(slice) if v.Kind() != reflect.Slice { return nil, errors.New("the input isn't a slice") } if v.Len() == 0 || len(indexes) == 0 { return slice, nil } // convert the indexes to map set m := make(...
func TypeOf(i interface{}) Type 当我们调用reflect.Typeof(x)的时候,x首先被保存到一个空接口中,这个空接口然后被作为参数传递。reflect.Typeof 会把这个空接口拆包(unpack)恢复出类型信息。 当然,reflect.Valueof可以把值恢复出来 var x float64 = 3.4 ...
func (b *BaseServer) Converts(dst []string, v reflect.Value) []string { // Drill down to the concrete value for v.Kind() == reflect.Interface { v = v.Elem() } if v.Kind() == reflect.Slice { // Convert each element of the slice. ...
将非接口值赋给接口值(assign non-interface values to interface values )。当非接口值不是一个指针值时。 连接 非-常量字符串(concatenate non-constant strings)。 将字符串转换为字节片或符文片,反之亦然,除了一些特殊的编译器优化情况。(convert strings to byte or rune slices, and vice versa) ...