mysql - MySQL 插入中的 Powershell 数组值正在输出整个数组

Question

首先，我是 Powershell 的新手，因为这是我的第一次尝试。我正在做我可以用其他语言编程所以我可以破解这个项目。我已经花了几天时间试图解决这个问题，我知道这很愚蠢。我只是卡住了。

# Insert into master table
$query = "INSERT INTO ``master``(``diff``, ``key``) VALUES ('$diff', '$key')"
Invoke-MySqlQuery -Query $query
$query

测试输出显示这工作正常:

INSERT INTO `master`(`diff`, `key`) VALUES ('248', 'k000002143200000000000000680006080005500900030082670009461000500000091000000000000')

它也可以很好地输入 MySQL 数据库。

遵循完全相同的格式对我不起作用。就像我在顶部所说的那样，我知道这是我遗漏的一些愚蠢的格式设置。

# Insert into answers table
$query = "INSERT INTO ``puzzles``(``id``, ``p1``, ``p2``, ``p3``, ``p4``, ``p5``, ``p6``, ``p7``, ``p8``, ``p9``, ``p10``, ``p11``, ``p12``, ``p13``, ``p14``, ``p15``, ``p16``, ``p17``, ``p18``, ``p19``, ``p20``, ``p21``, ``p22``, ``p23``, ``p24``, ``p25``, ``p26``, ``p27``, ``p28``, ``p29``, ``p30``, ``p31``, ``p32``, ``p33``, ``p34``, ``p35``, ``p36``, ``p37``, ``p38``, ``p39``, ``p40``, ``p41``, ``p42``, ``p43``, ``p44``, ``p45``, ``p46``, ``p47``, ``p48``, ``p49``, ``p50``, ``p51``, ``p52``, ``p53``, ``p54``, ``p55``, ``p56``, ``p57``, ``p58``, ``p59``, ``p60``, ``p61``, ``p62``, ``p63``, ``p64``, ``p65``, ``p66``, ``p67``, ``p68``, ``p69``, ``p70``, ``p71``, ``p72``, ``p73``, ``p74``, ``p75``, ``p76``, ``p77``, ``p78``, ``p79``, ``p80``, ``p81``) VALUES ('$id', '$p[0]', '$p[1]', '$p[2]', '$p[3]', '$p[4]', '$p[5]', '$p[6]', '$p[7]', '$p[8]', '$p[9]', '$p[10]', '$p[11]', '$p[12]', '$p[13]', '$p[14]', '$p[15]', '$p[16]', '$p[17]', '$p[18]', '$p[19]', '$p[20]', '$p[21]', '$p[22]', '$p[23]', '$p[24]', '$p[25]', '$p[26]', '$p[27]', '$p[28]', '$p[29]', '$p[30]', '$p[31]', '$p[32]', '$p[33]', '$p[34]', '$p[35]', '$p[36]', '$p[37]', '$p[38]', '$p[39]', '$p[40]', '$p[41]', '$p[42]', '$p[43]', '$p[44]', '$p[45]', '$p[46]', '$p[47]', '$p[48]', '$p[49]', '$p[50]', '$p[51]', '$p[52]', '$p[53]', '$p[54]', '$p[55]', '$p[56]', '$p[57]', '$p[58]', '$p[59]', '$p[60]', '$p[61]', '$p[62]', '$p[63]', '$p[64]', '$p[65]', '$p[66]', '$p[67]', '$p[68]', '$p[69]', '$p[70]', '$p[71]', '$p[72]', '$p[73]', '$p[74]', '$p[75]', '$p[76]', '$p[77]', '$p[78]', '$p[79]', '$p[80]')"
$query
$p[0]
$p[1]
$p[2]
$p[3]
$p[4]
$p[5]
Invoke-MySqlQuery -Query $query

这是我在其中一次运行中得到的输出:

INSERT INTO `puzzles`(`id`, `p1`, `p2`, `p3`, `p4`, `p5`, `p6`, `p7`, `p8`, `p9`, `p10`, `p11`, `p12`, `p13`, `p14`, `p15`, `p16`, `p17`, `p
18`, `p19`, `p20`, `p21`, `p22`, `p23`, `p24`, `p25`, `p26`, `p27`, `p28`, `p29`, `p30`, `p31`, `p32`, `p33`, `p34`, `p35`, `p36`, `p37`, `p
38`, `p39`, `p40`, `p41`, `p42`, `p43`, `p44`, `p45`, `p46`, `p47`, `p48`, `p49`, `p50`, `p51`, `p52`, `p53`, `p54`, `p55`, `p56`, `p57`, `p
58`, `p59`, `p60`, `p61`, `p62`, `p63`, `p64`, `p65`, `p66`, `p67`, `p68`, `p69`, `p70`, `p71`, `p72`, `p73`, `p74`, `p75`, `p76`, `p77`, `p
78`, `p79`, `p80`, `p81`) VALUES ('2596', '000002143200000000000000680006080005500900030082670009461000500000091000000000000[0]', '000002143
200000000000000680006080005500900030082670009461000500000091000000000000[1]', '0000021432000000000000006800060800055009000300826700094610005
00000091000000000000[2]', '000002143200000000000000680006080005500900030082670009461000500000091000000000000[3]', '0000021432000000000000006
80006080005500900030082670009461000500000091000000000000[4]', '00000214320000000000000068000608000550090003008267000946100050000009100000000
0000[5]', '000002143200000000000000680006080005500900030082670009461000500000091000000000000[6]', '00000214320000000000000068000608000550090
0030082670009461000500000091000000000000[7]', '000002143200000000000000680006080005500900030082670009461000500000091000000000000[8]', '00000
2143200000000000000680006080005500900030082670009461000500000091000000000000[9]', '000002143200000000000000680006080005500900030082670009461
000500000091000000000000[10]', '000002143200000000000000680006080005500900030082670009461000500000091000000000000[11]', '0000021432000000000
00000680006080005500900030082670009461000500000091000000000000[12]', '0000021432000000000000006800060800055009000300826700094610005000000910
00000000000[13]', '000002143200000000000000680006080005500900030082670009461000500000091000000000000[14]', '00000214320000000000000068000608
0005500900030082670009461000500000091000000000000[15]', '000002143200000000000000680006080005500900030082670009461000500000091000000000000[1
6]', '000002143200000000000000680006080005500900030082670009461000500000091000000000000[17]', '000002143200000000000000680006080005500900030
082670009461000500000091000000000000[18]', '000002143200000000000000680006080005500900030082670009461000500000091000000000000[19]', '0000021
43200000000000000680006080005500900030082670009461000500000091000000000000[20]', '0000021432000000000000006800060800055009000300826700094610
00500000091000000000000[21]', '000002143200000000000000680006080005500900030082670009461000500000091000000000000[22]', '00000214320000000000
0000680006080005500900030082670009461000500000091000000000000[23]', '00000214320000000000000068000608000550090003008267000946100050000009100
0000000000[24]', '000002143200000000000000680006080005500900030082670009461000500000091000000000000[25]', '000002143200000000000000680006080
005500900030082670009461000500000091000000000000[26]', '000002143200000000000000680006080005500900030082670009461000500000091000000000000[27
]', '000002143200000000000000680006080005500900030082670009461000500000091000000000000[28]', '0000021432000000000000006800060800055009000300
82670009461000500000091000000000000[29]', '000002143200000000000000680006080005500900030082670009461000500000091000000000000[30]', '00000214
3200000000000000680006080005500900030082670009461000500000091000000000000[31]', '00000214320000000000000068000608000550090003008267000946100
0500000091000000000000[32]', '000002143200000000000000680006080005500900030082670009461000500000091000000000000[33]', '000002143200000000000
000680006080005500900030082670009461000500000091000000000000[34]', '000002143200000000000000680006080005500900030082670009461000500000091000
000000000[35]', '000002143200000000000000680006080005500900030082670009461000500000091000000000000[36]', '0000021432000000000000006800060800
05500900030082670009461000500000091000000000000[37]', '000002143200000000000000680006080005500900030082670009461000500000091000000000000[38]
', '000002143200000000000000680006080005500900030082670009461000500000091000000000000[39]', '00000214320000000000000068000608000550090003008
2670009461000500000091000000000000[40]', '000002143200000000000000680006080005500900030082670009461000500000091000000000000[41]', '000002143
200000000000000680006080005500900030082670009461000500000091000000000000[42]', '000002143200000000000000680006080005500900030082670009461000
500000091000000000000[43]', '000002143200000000000000680006080005500900030082670009461000500000091000000000000[44]', '0000021432000000000000
00680006080005500900030082670009461000500000091000000000000[45]', '0000021432000000000000006800060800055009000300826700094610005000000910000
00000000[46]', '000002143200000000000000680006080005500900030082670009461000500000091000000000000[47]', '00000214320000000000000068000608000
5500900030082670009461000500000091000000000000[48]', '000002143200000000000000680006080005500900030082670009461000500000091000000000000[49]'
, '000002143200000000000000680006080005500900030082670009461000500000091000000000000[50]', '000002143200000000000000680006080005500900030082
670009461000500000091000000000000[51]', '000002143200000000000000680006080005500900030082670009461000500000091000000000000[52]', '0000021432
00000000000000680006080005500900030082670009461000500000091000000000000[53]', '0000021432000000000000006800060800055009000300826700094610005
00000091000000000000[54]', '000002143200000000000000680006080005500900030082670009461000500000091000000000000[55]', '00000214320000000000000
0680006080005500900030082670009461000500000091000000000000[56]', '00000214320000000000000068000608000550090003008267000946100050000009100000
0000000[57]', '000002143200000000000000680006080005500900030082670009461000500000091000000000000[58]', '000002143200000000000000680006080005
500900030082670009461000500000091000000000000[59]', '000002143200000000000000680006080005500900030082670009461000500000091000000000000[60]',
 '000002143200000000000000680006080005500900030082670009461000500000091000000000000[61]', '0000021432000000000000006800060800055009000300826
70009461000500000091000000000000[62]', '000002143200000000000000680006080005500900030082670009461000500000091000000000000[63]', '00000214320
0000000000000680006080005500900030082670009461000500000091000000000000[64]', '00000214320000000000000068000608000550090003008267000946100050
0000091000000000000[65]', '000002143200000000000000680006080005500900030082670009461000500000091000000000000[66]', '000002143200000000000000
680006080005500900030082670009461000500000091000000000000[67]', '000002143200000000000000680006080005500900030082670009461000500000091000000
000000[68]', '000002143200000000000000680006080005500900030082670009461000500000091000000000000[69]', '0000021432000000000000006800060800055
00900030082670009461000500000091000000000000[70]', '000002143200000000000000680006080005500900030082670009461000500000091000000000000[71]', 
'000002143200000000000000680006080005500900030082670009461000500000091000000000000[72]', '00000214320000000000000068000608000550090003008267
0009461000500000091000000000000[73]', '000002143200000000000000680006080005500900030082670009461000500000091000000000000[74]', '000002143200
000000000000680006080005500900030082670009461000500000091000000000000[75]', '000002143200000000000000680006080005500900030082670009461000500
000091000000000000[76]', '000002143200000000000000680006080005500900030082670009461000500000091000000000000[77]', '0000021432000000000000006
80006080005500900030082670009461000500000091000000000000[78]', '0000021432000000000000006800060800055009000300826700094610005000000910000000
00000[79]', '000002143200000000000000680006080005500900030082670009461000500000091000000000000[80]')
0
0
0
0
0
2

在 $query 变量中，$p[X] 不像下面的 $p[X] 那样工作。它正在吐出整个阵列。显然它在将它发送到 MySQL 时不起作用，我得到了正确的 ID，仅此而已。

先谢谢大家的帮助，敲键盘敲了一会儿脑袋疼!

伊恩

奖金问题!关于这方面的任何提示也很好。任何 0 都不需要在那里，我实际上希望它们为 NULL。任何关于以干净的方式做到这一点的提示都会很棒。完全披露我什至还没有研究这部分!

编辑——回应@Mathias R. Jessen

我删除了与 $p 无关的所有其他代码，以使其看起来更轻松。

# Set the key variable
$key = (Get-Content Puzzles.txt)[$loop] # ....73.146...8.......6......5..2..8.8..5.9..1.923..........273.........8..3..1.46 #Extreme
$key = $key.Replace(".", "0")           # 000073014600080000000600000050020080800509001092300000000002730000000008003001046 #Extreme
$key = -join('k', $key.Substring(0,81)) # k000073014600080000000600000050020080800509001092300000000002730000000008003001046
$check = (Invoke-MySqlQuery -Query "SELECT COUNT(*) FROM ``master`` WHERE ``key`` = '$key'")
$check = $check.'COUNT(*)'

# Check in master table if key exists, i.e. not a new puzzle
IF ($check -eq 0) {

    $p = $key.Substring(1,81)           # 000073014600080000000600000050020080800509001092300000000002730000000008003001046
    # Insert into answers table
    $query = "INSERT INTO ``puzzles``(``id``, ``p1``, ``p2``, ``p3``, ``p4``, ``p5``, ``p6``, ``p7``, ``p8``, ``p9``, ``p10``, ``p11``, ``p12``, ``p13``, ``p14``, ``p15``, ``p16``, ``p17``, ``p18``, ``p19``, ``p20``, ``p21``, ``p22``, ``p23``, ``p24``, ``p25``, ``p26``, ``p27``, ``p28``, ``p29``, ``p30``, ``p31``, ``p32``, ``p33``, ``p34``, ``p35``, ``p36``, ``p37``, ``p38``, ``p39``, ``p40``, ``p41``, ``p42``, ``p43``, ``p44``, ``p45``, ``p46``, ``p47``, ``p48``, ``p49``, ``p50``, ``p51``, ``p52``, ``p53``, ``p54``, ``p55``, ``p56``, ``p57``, ``p58``, ``p59``, ``p60``, ``p61``, ``p62``, ``p63``, ``p64``, ``p65``, ``p66``, ``p67``, ``p68``, ``p69``, ``p70``, ``p71``, ``p72``, ``p73``, ``p74``, ``p75``, ``p76``, ``p77``, ``p78``, ``p79``, ``p80``, ``p81``) VALUES ('$id', '$p[0]', '$p[1]', '$p[2]', '$p[3]', '$p[4]', '$p[5]', '$p[6]', '$p[7]', '$p[8]', '$p[9]', '$p[10]', '$p[11]', '$p[12]', '$p[13]', '$p[14]', '$p[15]', '$p[16]', '$p[17]', '$p[18]', '$p[19]', '$p[20]', '$p[21]', '$p[22]', '$p[23]', '$p[24]', '$p[25]', '$p[26]', '$p[27]', '$p[28]', '$p[29]', '$p[30]', '$p[31]', '$p[32]', '$p[33]', '$p[34]', '$p[35]', '$p[36]', '$p[37]', '$p[38]', '$p[39]', '$p[40]', '$p[41]', '$p[42]', '$p[43]', '$p[44]', '$p[45]', '$p[46]', '$p[47]', '$p[48]', '$p[49]', '$p[50]', '$p[51]', '$p[52]', '$p[53]', '$p[54]', '$p[55]', '$p[56]', '$p[57]', '$p[58]', '$p[59]', '$p[60]', '$p[61]', '$p[62]', '$p[63]', '$p[64]', '$p[65]', '$p[66]', '$p[67]', '$p[68]', '$p[69]', '$p[70]', '$p[71]', '$p[72]', '$p[73]', '$p[74]', '$p[75]', '$p[76]', '$p[77]', '$p[78]', '$p[79]', '$p[80]')"
    Invoke-MySqlQuery -Query $query
}

Answer 1

您需要使用 subexpression operator $() 在字符串插值期间评估该索引处的集合。如果没有此运算符，将打印整个集合的内容以及文字索引语法。

您的第一个示例按预期工作，因为您只是对简单变量进行插值，而没有对它们做任何额外的工作。

这是命令行中的一个简单示例:

C:\> $arr = 1,2,3,4   

在字符串之外:

C:\> $arr[0]          
1                  

在字符串插值期间，没有子表达式运算符:

C:\> "$arr[0]"        
1 2 3 4[0]   

在字符串插值期间，使用子表达式运算符:

C:\> "$($arr[0])"     
1   

---

这意味着你的例子会变成这样:

...VALUES ('$id', '$($p[0])', '$($p[1])'...

请注意 $id 可以正常工作，因为它是一个简单的变量。您只需要将子表达式运算符用于其他工作，例如评估索引、属性等。

如果您想进一步研究，这个概念有时也称为变量扩展。