gobox 中的异常定义和杂项工具

package main
import (    "github.com/goinbox/exception"
    "fmt")
func main() {    e := exception.New(101, "test exception")
    fmt.Println(e.Errno(), e.Msg())    fmt.Println(e.Error())}

101 test exceptionerrno : 101 , msg : test exception

package main
import (    "github.com/goinbox/gomisc"
    "fmt")
func main() {    is := []int{1, 2, 2, 3, 3, 3, 4, 4, 4, 4}    fmt.Println("origin slice is: ", is)
    is = gomisc.IntSliceUnique(is)    fmt.Println("after call slice is: ", is)
    ss := []string{"a", "ab", "ab", "abc", "abc", "abc", "abcd", "abcd", "abcd", "abcd", "abcd"}    fmt.Println("origin slice is: ", ss)
    ss = gomisc.StringSliceUnique(ss)    fmt.Println("after call slice is: ", ss)}

origin slice is: [1 2 2 3 3 3 4 4 4 4]after call slice is: [1 2 3 4]origin slice is: [a ab ab abc abc abc abcd abcd abcd abcd abcd]after call slice is: [a ab abc abcd]

package main
import (    "github.com/goinbox/gomisc"
    "fmt")
func main() {    f := "/etc/passwd"
    r := gomisc.FileExist(f)    if r {        fmt.Println(f, "is exist")    } else {        fmt.Println(f, "is not exist")    }
d := "/home/ligang/devspace"
    r = gomisc.DirExist(d)    if r {        fmt.Println(d, "is exist")    } else {        fmt.Println(d, "is not exist")    }}

/etc/passwd is exist/home/ligang/devspace is exist

package main
import (    "github.com/goinbox/gomisc"
    "fmt")
func main() {    b := []byte("abc")    b = gomisc.AppendBytes(b, []byte("def"), []byte("ghi"))
    fmt.Println(string(b))}

abcdefghi

package main
import (    "github.com/goinbox/gomisc"
    "fmt")
func main() {    fileList, err := gomisc.ListFilesInDir("/home/ligang/tmp")    if err != nil {        fmt.Println(err)        return    }
    for _, path := range fileList {        fmt.Println(path)    }}

root dir is: /home/ligang/tmpfile list under root dir are:/home/ligang/tmp/misc/go1.10.2.linux-amd64.tar.gz/home/ligang/tmp/misc/CLion-2018.1.2.tar.gz/home/ligang/tmp/misc/docker-18.03.1-ce.tgz/home/ligang/tmp/go/main.go/home/ligang/tmp/go/.idea/modules.xml/home/ligang/tmp/go/.idea/workspace.xml/home/ligang/tmp/go/.idea/go.iml

package main
import (    "github.com/goinbox/gomisc"
    "fmt")
func main() {    filePath := "/tmp/test_save_parse_json_file.json"        v1 := make(map[string]string)    v1["k1"] = "a"    v1["k2"] = "b"    v1["k3"] = "c"        err := gomisc.SaveJsonFile(filePath, v1)    if err != nil {    fmt.Println("save json file failed: " + err.Error())    } else {    fmt.Println("save json file success")    }        v2 := make(map[string]string)    err = gomisc.ParseJsonFile(filePath, &v2)    if err != nil {    fmt.Println("parse json file failed: " + err.Error())    } else {    fmt.Println("parse json file success")    }
    for k, v := range v2 {        if v != v1[k] {            fmt.Println("save parse json file error, k: " + k + " not equal")        } else {            fmt.Println("save parse json file k:", k, "equal")        }    }}

save json file successparse json file successsave parse json file k: k2 equalsave parse json file k: k3 equalsave parse json file k: k1 equal

package main
import (    "github.com/goinbox/gomisc"
    "fmt")
func main() {    s := "abcdefg"
    _, err := gomisc.SubString(s, 3, 20)    fmt.Println(err)
    _, err = gomisc.SubString(s, 10, 3)    fmt.Println(err)
    ss, _ := gomisc.SubString(s, 3, 4)    fmt.Println(s, "substr", "3,4", "is", ss)}

end too longend too longabcdefg substr 3,4 is defg

TIME_FMT_STR_YEAR = "2006"TIME_FMT_STR_MONTH = "01"TIME_FMT_STR_DAY = "02"TIME_FMT_STR_HOUR = "15"TIME_FMT_STR_MINUTE = "04"TIME_FMT_STR_SECOND = "05"

package main
import (    "github.com/goinbox/gomisc"
    "fmt"    "time")func main() {    layout := gomisc.TimeGeneralLayout()    fmt.Println("fmt layout is", layout)
    fmt.Println("not time is", time.Now().Format(layout))}

fmt layout is 2006-01-02 15:04:05not time is 2018-05-20 06:15:08

package main
import (    "github.com/goinbox/gomisc"
    "fmt"    "time")
func main() {    tm := time.Now()    fmt.Println(gomisc.RandByTime(&tm), gomisc.RandByTime(&tm), gomisc.RandByTime(nil))}

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