``` go
func SliceColumn(structSlice []interface{}, key string) []interface{} {
rt := reflect.TypeOf(structSlice)
rv := reflect.ValueOf(structSlice)
if rt.Kind() == reflect.Slice { //切片类型
var sliceColumn []interface{}
elemt := rt.Elem() //获取切片元素类型
for i := 0; i < rv.Len(); i++ {
inxv := rv.Index(i)
if elemt.Kind() == reflect.Struct {
for i := 0; i < elemt.NumField(); i++ {
if elemt.Field(i).Name == key {
strf := inxv.Field(i)
switch strf.Kind() {
case reflect.String:
sliceColumn = append(sliceColumn, strf.String())
case reflect.Float64:
sliceColumn = append(sliceColumn, strf.Float())
case reflect.Int, reflect.Int64:
sliceColumn = append(sliceColumn, strf.Int())
default:
//do nothing
}
}
}
}
}
return sliceColumn
}
return nil
}
```
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