有没有 golang fmt.Println 打印结构体信息字符串的 在线格式化工具？

Question

就像在线json那样，把字符串转换成人性可视化的？

比如：

[ChunkID:2949 BlockGroup:<BlockGroupID:421 FreeSize:2101032929 Status:1 BlockInfos:<BlockID:2381 DataNodeIP:-1062706157 DataNodePort:8801 > BlockInfos:<BlockID:2382 DataNodeIP:-1062706159 DataNodePort:8801 > BlockInfos:<BlockID:2383 DataNodeIP:-1062705960 DataNodePort:8801 > > Status:0 Status:0 Status:0  ChunkID:2950 ChunkSize:67108864 BlockGroup:<BlockGroupID:421 FreeSize:2101032929 Status:1 BlockInfos:<BlockID:2381 DataNodeIP:-1062706157 DataNodePort:8801 > BlockInfos:<BlockID:2382 DataNodeIP:-1062706159 DataNodePort:8801 > BlockInfos:<BlockID:2383 DataNodeIP:-1062705960 DataNodePort:8801 > > Status:0 Status:0 Status:0  ChunkID:2951 ChunkSize:67108864 BlockGroup:<BlockGroupID:421 FreeSize:2101032929 Status:1 BlockInfos:<BlockID:2381 DataNodeIP:-1062706157 DataNodePort:8801 > BlockInfos:<BlockID:2382 DataNodeIP:-1062706159 DataNodePort:8801 > BlockInfos:<BlockID:2383 DataNodeIP:-1062705960 DataNodePort:8801 > > Status:0 Status:0 Status:0  ChunkID:2952 ChunkSize:67108864 BlockGroup:<BlockGroupID:421 FreeSize:2101032929 Status:1 BlockInfos:<BlockID:2381 DataNodeIP:-1062706157 DataNodePort:8801 > BlockInfos:<BlockID:2382 DataNodeIP:-1062706159 DataNodePort:8801 > BlockInfos:<BlockID:2383 DataNodeIP:-1062705960 DataNodePort:8801 > > Status:0 Status:0 Status:0  ChunkID:2953 ChunkSize:67108864 BlockGroup:<BlockGroupID:421 FreeSize:2101032929 Status:1 BlockInfos:<BlockID:2381 DataNodeIP:-1062706157 DataNodePort:8801 > BlockInfos:<BlockID:2382 DataNodeIP:-1062706159 DataNodePort:8801 > BlockInfos:<BlockID:2383 DataNodeIP:-1062705960 DataNodePort:8801 > > Status:0 Status:0 Status:0  ChunkID:2954 ChunkSize:67108864 BlockGroup:<BlockGroupID:421 FreeSize:2101032929 Status:1 BlockInfos:<BlockID:2381 DataNodeIP:-1062706157 DataNodePort:8801 > BlockInfos:<BlockID:2382 DataNodeIP:-1062706159 DataNodePort:8801 > BlockInfos:<BlockID:2383 DataNodeIP:-1062705960 DataNodePort:8801 > > Status:0 Status:0 Status:0  ChunkID:2955 ChunkSize:67108864 BlockGroup:<BlockGroupID:422 FreeSize:9967061801 Status:1 BlockInfos:<BlockID:2384 DataNodeIP:-1062706157 DataNodePort:8801 > BlockInfos:<BlockID:2385 DataNodeIP:-1062706159 DataNodePort:8801 > BlockInfos:<BlockID:2386 DataNodeIP:-1062705960 DataNodePort:8801 > > Status:0 Status:0 Status:0  ChunkID:2956 ChunkSize:67108864 BlockGroup:<BlockGroupID:421 FreeSize:2101032929 Status:1 BlockInfos:<BlockID:2381 DataNodeIP:-1062706157 DataNodePort:8801 > BlockInfos:<BlockID:2382 DataNodeIP:-1062706159 DataNodePort:8801 > BlockInfos:<BlockID:2383 DataNodeIP:-1062705960 DataNodePort:8801 > > Status:0 Status:0 Status:0  ChunkID:2957 ChunkSize:67108864 BlockGroup:<BlockGroupID:421 FreeSize:2101032929 Status:1 BlockInfos:<BlockID:2381 DataNodeIP:-1062706157 DataNodePort:8801 > BlockInfos:<BlockID:2382 DataNodeIP:-1062706159 DataNodePort:8801 > BlockInfos:<BlockID:2383 DataNodeIP:-1062705960 DataNodePort:8801 > > Status:0 Status:0 Status:0  ChunkID:2958 ChunkSize:67108864 BlockGroup:<BlockGroupID:421 FreeSize:2101032929 Status:1 BlockInfos:<BlockID:2381 DataNodeIP:-1062706157 DataNodePort:8801 > BlockInfos:<BlockID:2382 DataNodeIP:-1062706159 DataNodePort:8801 > BlockInfos:<BlockID:2383 DataNodeIP:-1062705960 DataNodePort:8801 > > Status:0 Status:0 Status:0  ChunkID:2959 ChunkSize:67108864 BlockGroup:<BlockGroupID:421 FreeSize:2101032929 Status:1 BlockInfos:<BlockID:2381 DataNodeIP:-1062706157 DataNodePort:8801 > BlockInfos:<BlockID:2382 DataNodeIP:-1062706159 DataNodePort:8801 > BlockInfos:<BlockID:2383 DataNodeIP:-1062705960 DataNodePort:8801 > > Status:0 Status:0 Status:0  ChunkID:2960 ChunkSize:67108864 BlockGroup:<BlockGroupID:421 FreeSize:2101032929 Status:1 BlockInfos:<BlockID:2381 DataNodeIP:-1062706157 DataNodePort:8801 > BlockInfos:<BlockID:2382 DataNodeIP:-1062706159 DataNodePort:8801 > BlockInfos:<BlockID:2383 DataNodeIP:-1062705960 DataNodePort:8801 > > Status:0 Status:0 Status:0  ChunkID:2961 ChunkSize:67108864 BlockGroup:<BlockGroupID:421 FreeSize:2101032929 Status:1 BlockInfos:<BlockID:2381 DataNodeIP:-1062706157 DataNodePort:8801 > BlockInfos:<BlockID:2382 DataNodeIP:-1062706159 DataNodePort:8801 > BlockInfos:<BlockID:2383 DataNodeIP:-1062705960 DataNodePort:8801 > > Status:0 Status:0 Status:0  ChunkID:2962 ChunkSize:67108864 BlockGroup:<BlockGroupID:421 FreeSize:2101032929 Status:1 BlockInfos:<BlockID:2381 DataNodeIP:-1062706157 DataNodePort:8801 > BlockInfos:<BlockID:2382 DataNodeIP:-1062706159 DataNodePort:8801 > BlockInfos:<BlockID:2383 DataNodeIP:-1062705960 DataNodePort:8801 > > Status:0 Status:0 Status:0  ChunkID:2963 ChunkSize:67108864 BlockGroup:<BlockGroupID:421 FreeSize:2101032929 Status:1 BlockInfos:<BlockID:2381 DataNodeIP:-1062706157 DataNodePort:8801 > BlockInfos:<BlockID:2382 DataNodeIP:-1062706159 DataNodePort:8801 > BlockInfos:<BlockID:2383 DataNodeIP:-1062705960 DataNodePort:8801 > > Status:0 Status:0 Status:0  ChunkID:2964 ChunkSize:67108864 BlockGroup:<BlockGroupID:421 FreeSize:2101032929 Status:1 BlockInfos:<BlockID:2381 DataNodeIP:-1062706157 DataNodePort:8801 > BlockInfos:<BlockID:2382 DataNodeIP:-1062706159 DataNodePort:8801 > BlockInfos:<BlockID:2383 DataNodeIP:-1062705960 DataNodePort:8801 > > Status:0 Status:0 Status:0  ChunkID:2965 ChunkSize:67108864 BlockGroup:<BlockGroupID:421 FreeSize:2101032929 Status:1 BlockInfos:<BlockID:2381 DataNodeIP:-1062706157 DataNodePort:8801 > BlockInfos:<BlockID:2382 DataNodeIP:-1062706159 DataNodePort:8801 > BlockInfos:<BlockID:2383 DataNodeIP:-1062705960 DataNodePort:8801 > > Status:0 Status:0 Status:0  ChunkID:2966 ChunkSize:67108864 BlockGroup:<BlockGroupID:421 FreeSize:2101032929 Status:1 BlockInfos:<BlockID:2381 DataNodeIP:-1062706157 DataNodePort:8801 > BlockInfos:<BlockID:2382 DataNodeIP:-1062706159 DataNodePort:8801 > BlockInfos:<BlockID:2383 DataNodeIP:-1062705960 DataNodePort:8801 > > Status:0 Status:0 Status:0  ChunkID:2967 ChunkSize:67108864 BlockGroup:<BlockGroupID:421 FreeSize:2101032929 Status:1 BlockInfos:<BlockID:2381 DataNodeIP:-1062706157 DataNodePort:8801 > BlockInfos:<BlockID:2382 DataNodeIP:-1062706159 DataNodePort:8801 > BlockInfos:<BlockID:2383 DataNodeIP:-1062705960 DataNodePort:8801 > > Status:0 Status:0 Status:0  ChunkID:2968 ChunkSize:67108864 BlockGroup:<BlockGroupID:421 FreeSize:2101032929 Status:1 BlockInfos:<BlockID:2381 DataNodeIP:-1062706157 DataNodePort:8801 > BlockInfos:<BlockID:2382 DataNodeIP:-1062706159 DataNodePort:8801 > BlockInfos:<BlockID:2383 DataNodeIP:-1062705960 DataNodePort:8801 > > Status:0 Status:0 Status:0  ChunkID:2969 ChunkSize:67108864 BlockGroup:<BlockGroupID:421 FreeSize:2101032929 Status:1 BlockInfos:<BlockID:2381 DataNodeIP:-1062706157 DataNodePort:8801 > BlockInfos:<BlockID:2382 DataNodeIP:-1062706159 DataNodePort:8801 > BlockInfos:<BlockID:2383 DataNodeIP:-1062705960 DataNodePort:8801 > > Status:0 Status:0 Status:0  ChunkID:2970 ChunkSize:67108864 BlockGroup:<BlockGroupID:421 FreeSize:2101032929 Status:1 BlockInfos:<BlockID:2381 DataNodeIP:-1062706157 DataNodePort:8801 > BlockInfos:<BlockID:2382 DataNodeIP:-1062706159 DataNodePort:8801 > BlockInfos:<BlockID:2383 DataNodeIP:-1062705960 DataNodePort:8801 > > Status:0 Status:0 Status:0  ChunkID:2971 ChunkSize:67108864 BlockGroup:<BlockGroupID:421 FreeSize:2101032929 Status:1 BlockInfos:<BlockID:2381 DataNodeIP:-1062706157 DataNodePort:8801 > BlockInfos:<BlockID:2382 DataNodeIP:-1062706159 DataNodePort:8801 > BlockInfos:<BlockID:2383 DataNodeIP:-1062705960 DataNodePort:8801 > > Status:0 Status:0 Status:0  ChunkID:2972 ChunkSize:67108864 BlockGroup:<BlockGroupID:421 FreeSize:2101032929 Status:1 BlockInfos:<BlockID:2381 DataNodeIP:-1062706157 DataNodePort:8801 > BlockInfos:<BlockID:2382 DataNodeIP:-1062706159 DataNodePort:8801 > BlockInfos:<BlockID:2383 DataNodeIP:-1062705960 DataNodePort:8801 > > Status:0 Status:0 Status:0  ChunkID:2973 ChunkSize:67108864 BlockGroup:<BlockGroupID:421 FreeSize:2101032929 Status:1 BlockInfos:<BlockID:2381 DataNodeIP:-1062706157 DataNodePort:8801 > BlockInfos:<BlockID:2382 DataNodeIP:-1062706159 DataNodePort:8801 > BlockInfos:<BlockID:2383 DataNodeIP:-1062705960 DataNodePort:8801 > > Status:0 Status:0 Status:0  ChunkID:2974 ChunkSize:67108864 BlockGroup:<BlockGroupID:421 FreeSize:2101032929 Status:1 BlockInfos:<BlockID:2381 DataNodeIP:-1062706157 DataNodePort:8801 > BlockInfos:<BlockID:2382 DataNodeIP:-1062706159 DataNodePort:8801 > BlockInfos:<BlockID:2383 DataNodeIP:-1062705960 DataNodePort:8801 > > Status:0 Status:0 Status:0  ChunkID:2975 ChunkSize:67108864 BlockGroup:<BlockGroupID:421 FreeSize:2101032929 Status:1 BlockInfos:<BlockID:2381 DataNodeIP:-1062706157 DataNodePort:8801 > BlockInfos:<BlockID:2382 DataNodeIP:-1062706159 DataNodePort:8801 > BlockInfos:<BlockID:2383 DataNodeIP:-1062705960 DataNodePort:8801 > > Status:0 Status:0 Status:0  ChunkID:2976 ChunkSize:67108864 BlockGroup:<BlockGroupID:421 FreeSize:2101032929 Status:1 BlockInfos:<BlockID:2381 DataNodeIP:-1062706157 DataNodePort:8801 > BlockInfos:<BlockID:2382 DataNodeIP:-1062706159 DataNodePort:8801 > BlockInfos:<BlockID:2383 DataNodeIP:-1062705960 DataNodePort:8801 > > Status:0 Status:0 Status:0  ChunkID:2977 ChunkSize:67108864 BlockGroup:<BlockGroupID:421 FreeSize:2101032929 Status:1 BlockInfos:<BlockID:2381 DataNodeIP:-1062706157 DataNodePort:8801 > BlockInfos:<BlockID:2382 DataNodeIP:-1062706159 DataNodePort:8801 > BlockInfos:<BlockID:2383 DataNodeIP:-1062705960 DataNodePort:8801 > > Status:0 Status:0 Status:0  ChunkID:2978 ChunkSize:67108864 BlockGroup:<BlockGroupID:421 FreeSize:2101032929 Status:1 BlockInfos:<BlockID:2381 DataNodeIP:-1062706157 DataNodePort:8801 > BlockInfos:<BlockID:2382 DataNodeIP:-1062706159 DataNodePort:8801 > BlockInfos:<BlockID:2383 DataNodeIP:-1062705960 DataNodePort:8801 > > Status:0 Status:0 Status:0  ChunkID:2979 ChunkSize:67108864 BlockGroup:<BlockGroupID:421 FreeSize:2101032929 Status:1 BlockInfos:<BlockID:2381 DataNodeIP:-1062706157 DataNodePort:8801 > BlockInfos:<BlockID:2382 DataNodeIP:-1062706159 DataNodePort:8801 > BlockInfos:<BlockID:2383 DataNodeIP:-1062705960 DataNodePort:8801 > > Status:0 Status:0 Status:0  ChunkID:2980 ChunkSize:67108864 BlockGroup:<BlockGroupID:421 FreeSize:2101032929 Status:1 BlockInfos:<BlockID:2381 DataNodeIP:-1062706157 DataNodePort:8801 > BlockInfos:<BlockID:2382 DataNodeIP:-1062706159 DataNodePort:8801 > BlockInfos:<BlockID:2383 DataNodeIP:-1062705960 DataNodePort:8801 > > Status:0 Status:0 Status:0  ChunkID:2981 ChunkSize:67108864 BlockGroup:<BlockGroupID:421 FreeSize:2101032929 Status:1 BlockInfos:<BlockID:2381 DataNodeIP:-1062706157 DataNodePort:8801 > BlockInfos:<BlockID:2382 DataNodeIP:-1062706159 DataNodePort:8801 > BlockInfos:<BlockID:2383 DataNodeIP:-1062705960 DataNodePort:8801 > > Status:0 Status:0 Status:0  ChunkID:2982 ChunkSize:67108864 BlockGroup:<BlockGroupID:422 FreeSize:9967061801 Status:1 BlockInfos:<BlockID:2384 DataNodeIP:-1062706157 DataNodePort:8801 > BlockInfos:<BlockID:2385 DataNodeIP:-1062706159 DataNodePort:8801 > BlockInfos:<BlockID:2386 DataNodeIP:-1062705960 DataNodePort:8801 > > Status:0 Status:0 Status:0  ChunkID:2983 ChunkSize:67108864 BlockGroup:<BlockGroupID:421 FreeSize:2101032929 Status:1 BlockInfos:<BlockID:2381 DataNodeIP:-1062706157 DataNodePort:8801 > BlockInfos:<BlockID:2382 DataNodeIP:-1062706159 DataNodePort:8801 > BlockInfos:<BlockID:2383 DataNodeIP:-1062705960 DataNodePort:8801 > > Status:0 Status:0 Status:0  ChunkID:2984 ChunkSize:67108864 BlockGroup:<BlockGroupID:421 FreeSize:2101032929 Status:1 BlockInfos:<BlockID:2381 DataNodeIP:-1062706157 DataNodePort:8801 > BlockInfos:<BlockID:2382 DataNodeIP:-1062706159 DataNodePort:8801 > BlockInfos:<BlockID:2383 DataNodeIP:-1062705960 DataNodePort:8801 > > Status:0 Status:0 Status:0  ChunkID:2985 ChunkSize:67108864 BlockGroup:<BlockGroupID:421 FreeSize:2101032929 Status:1 BlockInfos:<BlockID:2381 DataNodeIP:-1062706157 DataNodePort:8801 > BlockInfos:<BlockID:2382 DataNodeIP:-1062706159 DataNodePort:8801 > BlockInfos:<BlockID:2383 DataNodeIP:-1062705960 DataNodePort:8801 > > Status:0 Status:0 Status:0  ChunkID:2986 ChunkSize:67108864 BlockGroup:<BlockGroupID:421 FreeSize:2101032929 Status:1 BlockInfos:<BlockID:2381 DataNodeIP:-1062706157 DataNodePort:8801 > BlockInfos:<BlockID:2382 DataNodeIP:-1062706159 DataNodePort:8801 > BlockInfos:<BlockID:2383 DataNodeIP:-1062705960 DataNodePort:8801 > > Status:0 Status:0 Status:0  ChunkID:2987 ChunkSize:67108864 BlockGroup:<BlockGroupID:421 FreeSize:2101032929 Status:1 BlockInfos:<BlockID:2381 DataNodeIP:-1062706157 DataNodePort:8801 > BlockInfos:<BlockID:2382 DataNodeIP:-1062706159 DataNodePort:8801 > BlockInfos:<BlockID:2383 DataNodeIP:-1062705960 DataNodePort:8801 > > Status:0 Status:0 Status:0  ChunkID:2988 ChunkSize:67108864 BlockGroup:<BlockGroupID:421 FreeSize:2101032929 Status:1 BlockInfos:<BlockID:2381 DataNodeIP:-1062706157 DataNodePort:8801 > BlockInfos:<BlockID:2382 DataNodeIP:-1062706159 DataNodePort:8801 > BlockInfos:<BlockID:2383 DataNodeIP:-1062705960 DataNodePort:8801 > > Status:0 Status:0 Status:0  ChunkID:2989 ChunkSize:67108864 BlockGroup:<BlockGroupID:421 FreeSize:2101032929 Status:1 BlockInfos:<BlockID:2381 DataNodeIP:-1062706157 DataNodePort:8801 > BlockInfos:<BlockID:2382 DataNodeIP:-1062706159 DataNodePort:8801 > BlockInfos:<BlockID:2383 DataNodeIP:-1062705960 DataNodePort:8801 > > Status:0 Status:0 Status:0  ChunkID:2990 ChunkSize:67108864 BlockGroup:<BlockGroupID:421 FreeSize:2101032929 Status:1 BlockInfos:<BlockID:2381 DataNodeIP:-1062706157 DataNodePort:8801 > BlockInfos:<BlockID:2382 DataNodeIP:-1062706159 DataNodePort:8801 > BlockInfos:<BlockID:2383 DataNodeIP:-1062705960 DataNodePort:8801 > > Status:0 Status:0 Status:0  ChunkID:2991 ChunkSize:67108864 BlockGroup:<BlockGroupID:421 FreeSize:2101032929 Status:1 BlockInfos:<BlockID:2381 DataNodeIP:-1062706157 DataNodePort:8801 > BlockInfos:<BlockID:2382 DataNodeIP:-1062706159 DataNodePort:8801 > BlockInfos:<BlockID:2383 DataNodeIP:-1062705960 DataNodePort:8801 > > Status:0 Status:0 Status:0  ChunkID:2992 ChunkSize:67108864 BlockGroup:<BlockGroupID:421 FreeSize:2101032929 Status:1 BlockInfos:<BlockID:2381 DataNodeIP:-1062706157 DataNodePort:8801 > BlockInfos:<BlockID:2382 DataNodeIP:-1062706159 DataNodePort:8801 > BlockInfos:<BlockID:2383 DataNodeIP:-1062705960 DataNodePort:8801 > > Status:0 Status:0 Status:0  ChunkID:2993 ChunkSize:67108864 BlockGroup:<BlockGroupID:421 FreeSize:2101032929 Status:1 BlockInfos:<BlockID:2381 DataNodeIP:-1062706157 DataNodePort:8801 > BlockInfos:<BlockID:2382 DataNodeIP:-1062706159 DataNodePort:8801 > BlockInfos:<BlockID:2383 DataNodeIP:-1062705960 DataNodePort:8801 > > Status:0 Status:0 Status:0  ChunkID:2994 ChunkSize:67108864 BlockGroup:<BlockGroupID:421 FreeSize:2101032929 Status:1 BlockInfos:<BlockID:2381 DataNodeIP:-1062706157 DataNodePort:8801 > BlockInfos:<BlockID:2382 DataNodeIP:-1062706159 DataNodePort:8801 > BlockInfos:<BlockID:2383 DataNodeIP:-1062705960 DataNodePort:8801 > > Status:0 Status:0 Status:0  ChunkID:2995 ChunkSize:67108864 BlockGroup:<BlockGroupID:421 FreeSize:2101032929 Status:1 BlockInfos:<BlockID:2381 DataNodeIP:-1062706157 DataNodePort:8801 > BlockInfos:<BlockID:2382 DataNodeIP:-1062706159 DataNodePort:8801 > BlockInfos:<BlockID:2383 DataNodeIP:-1062705960 DataNodePort:8801 > > Status:0 Status:0 Status:0  ChunkID:2996 ChunkSize:67108864 BlockGroup:<BlockGroupID:421 FreeSize:2101032929 Status:1 BlockInfos:<BlockID:2381 DataNodeIP:-1062706157 DataNodePort:8801 > BlockInfos:<BlockID:2382 DataNodeIP:-1062706159 DataNodePort:8801 > BlockInfos:<BlockID:2383 DataNodeIP:-1062705960 DataNodePort:8801 > > Status:0 Status:0 Status:0  ChunkID:2997 ChunkSize:67108864 BlockGroup:<BlockGroupID:421 FreeSize:2101032929 Status:1 BlockInfos:<BlockID:2381 DataNodeIP:-1062706157 DataNodePort:8801 > BlockInfos:<BlockID:2382 DataNodeIP:-1062706159 DataNodePort:8801 > BlockInfos:<BlockID:2383 DataNodeIP:-1062705960 DataNodePort:8801 > > Status:0 Status:0 Status:0  ChunkID:2998 ChunkSize:67108864 BlockGroup:<BlockGroupID:421 FreeSize:2101032929 Status:1 BlockInfos:<BlockID:2381 DataNodeIP:-1062706157 DataNodePort:8801 > BlockInfos:<BlockID:2382 DataNodeIP:-1062706159 DataNodePort:8801 > BlockInfos:<BlockID:2383 DataNodeIP:-1062705960 DataNodePort:8801 > > Status:0 Status:0 Status:0  ChunkID:2999 ChunkSize:67108864 BlockGroup:<BlockGroupID:421 FreeSize:2101032929 Status:1 BlockInfos:<BlockID:2381 DataNodeIP:-1062706157 DataNodePort:8801 > BlockInfos:<BlockID:2382 DataNodeIP:-1062706159 DataNodePort:8801 > BlockInfos:<BlockID:2383 DataNodeIP:-1062705960 DataNodePort:8801 > > Status:0 Status:0 Status:0  ChunkID:3000 ChunkSize:67108864 BlockGroup:<BlockGroupID:421 FreeSize:2101032929 Status:1 BlockInfos:<BlockID:2381 DataNodeIP:-1062706157 DataNodePort:8801 > BlockInfos:<BlockID:2382 DataNodeIP:-1062706159 DataNodePort:8801 > BlockInfos:<BlockID:2383 DataNodeIP:-1062705960 DataNodePort:8801 > > Status:0 Status:0 Status:0  ChunkID:3001 ChunkSize:37748736 BlockGroup:<BlockGroupID:421 FreeSize:2101032929 Status:1 BlockInfos:<BlockID:2381 DataNodeIP:-1062706157 DataNodePort:8801 > BlockInfos:<BlockID:2382 DataNodeIP:-1062706159 DataNodePort:8801 > BlockInfos:<BlockID:2383 DataNodeIP:-1062705960 DataNodePort:8801 > > Status:0 Status:0 Status:0 ]

Answer 1

go自带了几种格式化支持， 找个合适的就好

package main

import "fmt"
import "os"

type point struct {
    x, y int
}

func main() {

    // Go提供了几种打印格式，用来格式化一般的Go值，例如
    // 下面的%v打印了一个point结构体的对象的值
    p := point{1, 2}
    fmt.Printf("%v\n", p)

    // 如果所格式化的值是一个结构体对象，那么`%+v`的格式化输出
    // 将包括结构体的成员名称和值
    fmt.Printf("%+v\n", p)

    // `%#v`格式化输出将输出一个值的Go语法表示方式。
    fmt.Printf("%#v\n", p)

    // 使用`%T`来输出一个值的数据类型
    fmt.Printf("%T\n", p)

    // 格式化布尔型变量
    fmt.Printf("%t\n", true)

    // 有很多的方式可以格式化整型，使用`%d`是一种
    // 标准的以10进制来输出整型的方式
    fmt.Printf("%d\n", 123)

    // 这种方式输出整型的二进制表示方式
    fmt.Printf("%b\n", 14)

    // 这里打印出该整型数值所对应的字符
    fmt.Printf("%c\n", 33)

    // 使用`%x`输出一个值的16进制表示方式
    fmt.Printf("%x\n", 456)

    // 浮点型数值也有几种格式化方法。最基本的一种是`%f`
    fmt.Printf("%f\n", 78.9)

    // `%e`和`%E`使用科学计数法来输出整型
    fmt.Printf("%e\n", 123400000.0)
    fmt.Printf("%E\n", 123400000.0)

    // 使用`%s`输出基本的字符串
    fmt.Printf("%s\n", "\"string\"")

    // 输出像Go源码中那样带双引号的字符串，需使用`%q`
    fmt.Printf("%q\n", "\"string\"")

    // `%x`以16进制输出字符串，每个字符串的字节用两个字符输出
    fmt.Printf("%x\n", "hex this")

    // 使用`%p`输出一个指针的值
    fmt.Printf("%p\n", &p)

    // 当输出数字的时候，经常需要去控制输出的宽度和精度。
    // 可以使用一个位于%后面的数字来控制输出的宽度，默认
    // 情况下输出是右对齐的，左边加上空格
    fmt.Printf("|%6d|%6d|\n", 12, 345)

    // 你也可以指定浮点数的输出宽度，同时你还可以指定浮点数
    // 的输出精度
    fmt.Printf("|%6.2f|%6.2f|\n", 1.2, 3.45)

    // To left-justify, use the `-` flag.
    fmt.Printf("|%-6.2f|%-6.2f|\n", 1.2, 3.45)

    // 你也可以指定输出字符串的宽度来保证它们输出对齐。默认
    // 情况下，输出是右对齐的
    fmt.Printf("|%6s|%6s|\n", "foo", "b")

    // 为了使用左对齐你可以在宽度之前加上`-`号
    fmt.Printf("|%-6s|%-6s|\n", "foo", "b")

    // `Printf`函数的输出是输出到命令行`os.Stdout`的，你
    // 可以用`Sprintf`来将格式化后的字符串赋值给一个变量
    s := fmt.Sprintf("a %s", "string")
    fmt.Println(s)

    // 你也可以使用`Fprintf`来将格式化后的值输出到`io.Writers`
    fmt.Fprintf(os.Stderr, "an %s\n", "error")
}

结果：

{1 2}
{x:1 y:2}
main.point{x:1, y:2}
main.point
true
123
1110
!
1c8
78.900000
1.234000e+08
1.234000E+08
"string"
"\"string\""
6865782074686973
0x103a10c0
|    12|   345|
|  1.20|  3.45|
|1.20  |3.45  |
|   foo|     b|
|foo   |b     |
a string
an error

Answer 2

可以为结构提供一个自定义的格式化方法

type Person struct {
    name string
    age  int
}

func (p Person) String() string {
    return fmt.Sprintf("{Person name=%s, age=%d}", p.name, p.age)
}

func TestFormatPrint(t *testing.T) {
    person := &Person{name: "andy", age: 12}
    fmt.Println(person)
}

Answer 3

go有提供类似json的结构体输出格式，但是是未格式化的json格式，不过日常日志这样既能看，也省空间

type player struct{
    Id   int
    Name string
}

func main() {
    p := player{
        Id: 1,
        Name: "Jon",
    }
    fmt.Printf("%+v", p)
}