golang 类型之间的转换

package main
import (
    "fmt"
    "reflect"
    "strconv"
)
type Convert struct {
    data interface {}
}
func (r Convert) toString() string {
    fmt.Printf("类型是：%s\r\n", reflect.TypeOf(r.data))
    switch r.data.(type) {
    case string:
        return string(r.data.(string))
    case []uint8:
        return string(r.data.([]byte))
    case int:
        return strconv.Itoa(int(r.data.(int)))
    case int64:
        return strconv.FormatInt(int64(r.data.(int64)),10)
    case uint:
        return strconv.Itoa(int(r.data.(uint)))
    }
    return ""
}
func (r Convert) toInt() int {
    fmt.Printf("类型是：%s\r\n", reflect.TypeOf(r.data))
    var d int = 0
    switch r.data.(type) {
    case string:
        d, _ = strconv.Atoi(string(r.data.(string)))
        return d
    case []uint8:
        d, _ = strconv.Atoi( string(r.data.([]byte)))
        return d
    case int:
        return int(r.data.(int))
    case int64:
        return int(r.data.(int64))
    case uint:
        return int(r.data.(uint))
    }
    return 0
}
func main() {
    var v int64 = 123456
    r := Convert{v}
    s := r.toString()
    fmt.Println("hello"+s)
    i := r.toInt()
    fmt.Println(i+10)
}

golang 类型之间的转换

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