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- Keyword #comments-start
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- 函数（Functions）
- 使用函数时的注意事项
- Function ClipGet
- Function ClipPut
- Function EnvGet
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- Function MemGetStats
- Function DirCopy
- Function DirCreate
- Function DirGetSize
- Function DirMove
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- Function DriveGetDrive
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- Function InetGet
- Function InetGetSize
- Function Ping
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- Function DllClose
- Function DllOpen
- Function ProcessClose
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- Function Run
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- Function RegEnumVal
- Function RegRead
- Function RegWrite
- Function StringAddCR
- Function StringInStr
- Function StringIsAlNum
- Function StringIsAlpha
- Function StringIsASCII
- Function StringIsDigit
- Function StringIsFloat
- Function StringFormat
- Function StringIsInt
- Function StringIsLower
- Function StringIsSpace
- Function StringIsUpper
- Function StringIsXDigit
- Function StringLeft
- Function StringLen
- Function StringLower
- Function StringMid
- Function StringReplace
- Function StringRight
- Function StringSplit
- Function StringStripCR
- Function StringStripWS
- Function StringTrimLeft
- Function StringTrimRight
- Function StringUpper
- Function Sleep
- Function TimerInit
- Function TimerDiff
- Function Asc
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- Function IsAdmin
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- Function IsFloat
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- Function IsNumber
- Function IsString
- Function Number
- Function String
- Function UBound
- Function ControlClick
- Function ControlCommand
- Function ControlDisable
- Function ControlEnable
- Function ControlFocus
- Function ControlGetFocus
- Function ControlGetHandle
- Function ControlGetPos
- Function ControlGetText
- Function ControlHide
- Function ControlListView
- Function ControlMove
- Function ControlSend
- Function ControlSetText
- Function ControlShow
- Function StatusbarGetText
- Function WinActivate
- Function WinActive
- Function WinClose
- Function WinExists
- Function WinGetCaretPos
- Function WinGetClassList
- Function WinGetClientSize
- Function WinGetHandle
- Function WinGetPos
- Function WinGetProcess
- Function WinGetState
- Function WinGetText
- Function WinGetTitle
- Function WinKill
- Function WinList
- Function WinMenuSelectItem
- Function WinMinimizeAll
- Function WinMinimizeAllUndo
- Function WinMove
- Function WinSetOnTop
- Function WinSetState
- Function WinSetTitle
- Function WinSetTrans
- Function WinWait
- Function WinWaitActive
- Function WinWaitClose
- Function WinWaitNotActive
- User Defined Functions
- 自定义函数的注意事项（Function Notes）
- Function _ArrayAdd
- Function _ArrayBinarySearch
- Function _ArrayCreate
- Function _ArrayDelete
- Function _ArrayDisplay
- Function _ArrayInsert
- Function _ArrayMax
- Function _ArrayMaxIndex
- Function _ArrayMin
- Function _ArrayMinIndex
- Function _ArrayPop
- Function _ArrayReverse
- Function _ArraySort
- Function _ArraySwap
- Function _ArrayToClip
- Function _ArrayToString
- Function _ArrayTrim
- Function _ColorGetBlue
- Function _ColorGetGreen
- Function _ColorGetRed
- Function _DateAdd
- Function _DateDayOfWeek
- Function _DateDaysInMonth
- Function _DateDiff
- Function _DateIsLeapYear
- Function _DateIsValid
- Function _DateTimeFormat
- Function _DateToDayValue
- Function _DateToDayOfWeek
- Function _DateToDayValue
- Function _DayValueToDate
- Function _Now
- Function _NowCalc
- Function _NowCalcDate
- Function _NowDate
- Function _NowTime
- Function _TicksToTime
- Function _TimeToTicks
- Function _FileCountLines
- Function _FileCreate
- Function _FileReadToArray
- Function _FileWriteLog
- Function _TempFile
- Function _GetIP
- Function _INetExplorerCapable
- Function _INetMail
- Function _Ceil
- Function _Floor
- Function _MathCheckDiv
- Function _Max
- Function _Min
- Function _Iif
- Function _RunDos
- Function _HexToString
- Function _StringEncrypt
- Function _StringProper
- Function _StringRepeat
- Function _StringReverse
- Function _StringToHex
- Function _viOpen
- Function _viExecCommand
- Function _viFindGpib
- Function _viGpibBusReset
- Function _viGTL
- Function _viOpen
- Function _viSetAttribute
- Function _viSetTimeout
- Language Reference
- ASCII Characters
- CLSID List
- Standard Windows Fonts
- 标准 Windows 字体
- Language Codes
- Send 命令的可用按键列表
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Function StringMid
StringMid
取某个字符串的部分字符。
StringMid ( "字符串", 起始位置 [, 数量] )
参数
| 字符串 | 目标字符串。 |
| 起始位置 | 起始字符的位置（1代表第一个字符）。 |
| 数量 | [可选参数] 要提取的字符数量。默认则提取字符串中（从起始位置开始）剩下的所有字符。 |
返回值
返回获得的字符串。注意
若给定的起始位置越界则返回一个空字符串；若起始位置有效但数量越界则返回字符串中（从起始位置开始）剩下的所有字符。相关
String, StringInStr, StringLeft, StringLen, StringLower, StringRight, StringTrimLeft, StringTrimRight, StringUpper示例
$var = StringMid("I am a string", 3, 2)
MsgBox(0, "从第 3 个字符开始的 2 个字符是：", $var)
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