"Go Language Programming" Learning (ii)

Basis

One, hello

  1 package Main                                                                                   2                                                                         3 Import (4 "FMT"                                                                          5 "OS"                                                                                 6 "strings" 7)                                                                                   8 9 Func Main () {ten Who: = "W Orld "one-to-one" if Len (OS.                                               Args) > 1 {         who = strings. Join (OS.                                                                            Args[1:], "") 13} FMT.              Println ("Hello", WHO) 15}

　　

It seems that there is nothing to explain, the direct run on the line.

Two, bigdigits

  1Package Main 2                                                                                                     3Import (4     "FMT"                                                                                           5     "Log"                                                                                           6     "OS"                                                                                            7     "Path/filepath"                                                                                 8 )                                                                                                   9                                                                                                    TenFunc Main () { One     ifLen (OS. Args) = =1 {                                                                          AFmt. Println ("Usage:%s <whole-number>\n", filepath. Base (OS. args[0]))                        -Os. Exit (1)                                                                                  -     }                                                                                               theStringofdigits: = os. args[1]                                                                    -      forRow: = Range bigdigits[0] {                                                                 -Line: =""                                                                                  -          forColumn: =Range Stringofdigits { +Digit: = Stringofdigits[column]-'0'                                                   -             if 0<= Digit && Digit <=9 {                                                           +Line + = Bigdigits[digit][row] +" "                                                 A}Else {                                                                                atLog. Fatal ("invalid who number")                                                     -             }                                                                                       -         }                                                                                           -FMT. Println (line) -     }                                                                                               - }                                                                                                   in                                                                                                     - varBigdigits = []string{                                                                         to{" the",                                                                                     +         "0 0",                                                                                  -         "0 0",                                                                                  the         "0 0",                                                                                  *         "0 0",                                                                                  $         "0 0",                                                               Panax Notoginseng         " the"},                                                                                 -{"1"," One","1","1","1","1","111"},                                              the{"222","2 2","2","2","2","2","22222"},                                +{"333","3 3","3"," -","3","3 3","333"},                                A{"4"," -","4 4","4 4","444444","4",                                    the         "4"},                                                                                  +{"55555","5","5","555","5","5 5","555"},                                -{"666","6","6","6666","6 6","6 6","666"},                                ${"77777","7","7","7","7","7","7"},                                ${"888","8 8","8 8","888","8 8","8 8","888"},                                -{"9999","9 9","9 9","9999","9","9","9"},                                - }                                                                                                 ~

This piece of code: There seems to be nothing to say. Well, use range to get the offset of the relative ' 0 ' of each parameter number, and then stitch together the string representation of the corresponding line of each number. Sort of like a pixel puzzle.

"Go Language Programming" Learning (ii)