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版本:2.1.x

常用基本类型的转换方法比较简单,我们这里使用一个例子来演示转换方法的使用及效果。

基本示例

更多的类型转换方法请参考接口文档: https://pkg.go.dev/github.com/gogf/gf/v2/util/gconv

package main

import (
"fmt"
"github.com/gogf/gf/v2/util/gconv"
)

func main() {
i := 123.456
fmt.Printf("%10s %v\n", "Int:", gconv.Int(i))
fmt.Printf("%10s %v\n", "Int8:", gconv.Int8(i))
fmt.Printf("%10s %v\n", "Int16:", gconv.Int16(i))
fmt.Printf("%10s %v\n", "Int32:", gconv.Int32(i))
fmt.Printf("%10s %v\n", "Int64:", gconv.Int64(i))
fmt.Printf("%10s %v\n", "Uint:", gconv.Uint(i))
fmt.Printf("%10s %v\n", "Uint8:", gconv.Uint8(i))
fmt.Printf("%10s %v\n", "Uint16:", gconv.Uint16(i))
fmt.Printf("%10s %v\n", "Uint32:", gconv.Uint32(i))
fmt.Printf("%10s %v\n", "Uint64:", gconv.Uint64(i))
fmt.Printf("%10s %v\n", "Float32:", gconv.Float32(i))
fmt.Printf("%10s %v\n", "Float64:", gconv.Float64(i))
fmt.Printf("%10s %v\n", "Bool:", gconv.Bool(i))
fmt.Printf("%10s %v\n", "String:", gconv.String(i))
fmt.Printf("%10s %v\n", "Bytes:", gconv.Bytes(i))
fmt.Printf("%10s %v\n", "Strings:", gconv.Strings(i))
fmt.Printf("%10s %v\n", "Ints:", gconv.Ints(i))
fmt.Printf("%10s %v\n", "Floats:", gconv.Floats(i))
fmt.Printf("%10s %v\n", "Interfaces:", gconv.Interfaces(i))
}

执行后,输出结果为:

      Int: 123
Int8: 123
Int16: 123
Int32: 123
Int64: 123
Uint: 123
Uint8: 123
Uint16: 123
Uint32: 123
Uint64: 123
Float32: 123.456
Float64: 123.456
Bool: true
String: 123.456
Bytes: [119 190 159 26 47 221 94 64]
Strings: [123.456]
Ints: [123]
Floats: [123.456]
Interfaces: [123.456]

注意事项

数字转换方法例如 gconv.Int/Uint 等等,当给定的转换参数为字符串时,会自动识别十六进制、八进制。

十六进制转换

gconv0x 开头的数字字符串当做十六进制转换。例如, gconv.Int("0xff") 将会返回 255