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用大数字作为数组的键名的坑
Posted: 14 Nov 2017, 00:31
by tmplinshi
Code: Select all
n := "448045523405"
obj := {}
obj[n] := "abc"
MsgBox, % obj[n] ; 结果为 abc,正常。
for k, v in obj
MsgBox, % k "=" v ; 但是这里显示的是 1368924621=abc
Code: Select all
n1 := "448045523405"
n2 := "1368924621"
obj := {}
obj[n1] := "abc"
obj[n2] := "efg"
MsgBox, % obj[n1] ; 结果变成了 efg
; 只有一个键值:1368924621=efg
for k, v in obj
MsgBox, % k "=" v
解决方法:键名前面加上非数字,或者键名两边加引号
Code: Select all
n1 := "448045523405"
n2 := "1368924621"
obj := {}
obj["" n1 ""] := "abc"
obj["_" n2] := "efg"
MsgBox, % obj[n1] ; 结果为空
MsgBox, % obj["" n1 ""] ; 结果为abc
MsgBox, % obj["_" n2] ; 结果为efg
; 448045523405=abc
; _1368924621=efg
for k, v in obj
MsgBox, % k "=" v
Re: 用大数字作为数组的键名的坑
Posted: 14 Nov 2017, 03:46
by xuezhe
这是漏洞吗。最好报告给ahk作者呀。这是L V1 的漏洞,估计作者也不升级了。
我用V2运行结果正常,没有上面的问题。
Code: Select all
n := "448045523405"
obj := {}
obj[n] := "abc"
MsgBox obj[n] ; 结果为 abc,正常。
for k, v in obj
MsgBox k "=" v ; 448045523405=abc
n1 := "448045523405"
n2 := "1368924621"
obj := {}
obj[n1] := "abc"
obj[n2] := "efg"
MsgBox obj[n1] ; abc
Re: 用大数字作为数组的键名的坑
Posted: 14 Nov 2017, 07:45
by jeeswg
Objects
https://autohotkey.com/docs/Objects.htm
•Integer keys are stored using the native signed integer type. AutoHotkey 32-bit supports integer keys in the range -2147483648 to 2147483647. AutoHotkey supports 64-bit integers, but only AutoHotkey 64-bit supports the full range as keys in an object.
Objects
https://lexikos.github.io/v2/docs/Objects.htm
•Integer keys are stored using the native signed integer type where possible. Integers which are less than -2147483648 or greater than 2147483647 are stored as strings on AutoHotkey 32-bit but as integers on AutoHotkey 64-bit. (By contrast, 64-bit integers can be stored as values on either version.)
Cheers. 干杯。
Re: 用大数字作为数组的键名的坑
Posted: 14 Nov 2017, 10:18
by tmplinshi
Oh, thank you jeeswg! This is exactly the document I was looking for.
@xuezhe 我猜测会有相应的文档说明,jeeswg帮忙找出来了
Re: 用大数字作为数组的键名的坑
Posted: 22 Apr 2020, 03:37
by fywlts
键应该是一个变量吧。用变量就没事。如果是数字,不连续的话,不知道如何,但多维的话,可以用array[y,x]:=的形式赋值