0121-Go-字符串格式化

环境

  • Time 2022-08-25
  • Go 1.19

前言

说明

参考:https://gobyexample.com/string-formatting

目标

使用 Go 语言的字符串格式化。

示例

package main

import (
    "fmt"
    "os"
)

type point struct {
    x, y int
}

func main() {

    p := point{1, 2}
    fmt.Printf("struct1: %v\n", p)

    fmt.Printf("struct2: %+v\n", p)

    fmt.Printf("struct3: %#v\n", p)

    fmt.Printf("type: %T\n", p)

    fmt.Printf("bool: %t\n", true)

    fmt.Printf("int: %d\n", 123)

    fmt.Printf("bin: %b\n", 14)

    fmt.Printf("char: %c\n", 33)

    fmt.Printf("hex: %x\n", 456)

    fmt.Printf("float1: %f\n", 78.9)

    fmt.Printf("float2: %e\n", 123400000.0)
    fmt.Printf("float3: %E\n", 123400000.0)

    fmt.Printf("str1: %s\n", "\"string\"")

    fmt.Printf("str2: %q\n", "\"string\"")

    fmt.Printf("str3: %x\n", "hex this")

    fmt.Printf("pointer: %p\n", &p)

    fmt.Printf("width1: |%6d|%6d|\n", 12, 345)

    fmt.Printf("width2: |%6.2f|%6.2f|\n", 1.2, 3.45)

    fmt.Printf("width3: |%-6.2f|%-6.2f|\n", 1.2, 3.45)

    fmt.Printf("width4: |%6s|%6s|\n", "foo", "b")

    fmt.Printf("width5: |%-6s|%-6s|\n", "foo", "b")

    s := fmt.Sprintf("sprintf: a %s", "string")
    fmt.Println(s)

    fmt.Fprintf(os.Stderr, "io: an %s\n", "error")
}

总结

使用 Go 语言的字符串格式化。

附录

posted @ 2022-11-28 22:16  jiangbo4444  阅读(128)  评论(0)    收藏  举报