42 lines
1010 B
Go
42 lines
1010 B
Go
package convx
|
|
|
|
import (
|
|
"errors"
|
|
"strconv"
|
|
)
|
|
|
|
// interface 转 int64
|
|
func ToInt64(val interface{}) (i int64, err error) {
|
|
|
|
if v, ok := val.(int64); ok {
|
|
i = v
|
|
} else if v, ok := val.(int32); ok {
|
|
i = int64(v)
|
|
} else if v, ok := val.(string); ok {
|
|
// string 转 int64
|
|
// 第二个参数为基数（2~36），第三个参数位大小表示期望转换的结果类型，其值可以为0, 8, 16, 32和64，分别对应 int, int8, int16, int32和int64
|
|
i, err = strconv.ParseInt(v, 10, 64)
|
|
} else if v, ok := val.(float64); ok {
|
|
i = int64(v)
|
|
} else if v, ok := val.(float32); ok {
|
|
i = int64(v)
|
|
} else if v, ok := val.(int); ok {
|
|
i = int64(v)
|
|
} else if v, ok := val.(uint); ok {
|
|
i = int64(v)
|
|
} else if v, ok := val.(uint32); ok {
|
|
i = int64(v)
|
|
} else if v, ok := val.(uint64); ok {
|
|
i = int64(v)
|
|
} else if v, ok := val.(bool); ok {
|
|
if v {
|
|
i = 1
|
|
} else {
|
|
i = 0
|
|
}
|
|
} else {
|
|
err = errors.New("不支持的参数类型")
|
|
}
|
|
return
|
|
}
|