Loops 关于golang接口循环
我想打印一个复杂的数据集,比如咆哮Loops 关于golang接口循环,loops,go,interface,Loops,Go,Interface,我想打印一个复杂的数据集,比如咆哮 package main import ( "fmt" // "reflect" ) func main() { var initData []interface{} initData[0] = map[string]interface{}{ "name": "k1", "type": "line", "data": []int{1, 2, 3, 4}, }
package main
import (
"fmt"
// "reflect"
)
func main() {
var initData []interface{}
initData[0] = map[string]interface{}{
"name": "k1",
"type": "line",
"data": []int{1, 2, 3, 4},
}
initData[1] = map[string]interface{}{
"name": "k2",
"type": "circle",
"data": []int{11, 12, 13, 14},
}
for _, data := range initData {
for k, v := range data {
fmt.Println(k)
for _, sv := range v {
fmt.Println(" " + sv)
}
}
}
}
但是我犯了一个错误
./maps-in-maps.go:56: cannot range over data (type interface {})
有什么帮助吗?若要尝试将接口类型的数据集协调到arry或slice之类的交互,必须首先在每个接口{}级别键入assert,在这种情况下,在map[string]接口{}级别使用类型断言,因为我们知道一个确定的类型,并使用类型开关检查下一级别中每个嵌套值的预期类型
initData := []interface{}{
map[string]interface{}{
"name": "k1",
"type": "line",
"data": []int{1, 2, 3, 4},
},
map[string]interface{}{
"name": "k2",
"type": "circle",
"data": []int{11, 12, 13, 14},
},
}
for _, data := range initData {
for _, v := range data.(map[string]interface{}) {
switch t := v.(type) {
case string, []int:
fmt.Println(t)
default:
fmt.Println("wrong type")
}
}
}
}
在操场上跑步