Giáo Trình How To Use AutoIt A Professional Manner part 93 ppsx

Related
Exp
Example

$x = Log(1000) ;returns 6.90775527898214

$y = Log10(1000) ;returns 3

; user-defined function for common log
Func Log10($x)
Return Log($x) / Log(10) ;10 is the base
EndFunc




Function Reference
Mod
chia lấy phần dư.
Mod ( value1, value2 )
Parameters
value1 số bị chia
value2 số chia

Return Value
Success:

trả lại số
Failure:

trả lại -1. nếu lỗi chia cho 0.

Remarks
hàm có thể làm việc với cả số thực


Related
None.
Example

$n = 18
If mod($n, 2) = 0 Then
MsgBox(0,"", $n & " is an even number.")
Else
MsgBox(0, "", $n & " is an odd number.")
EndIf

$x = mod(4, 7) ;$x == 4 because the divisor > dividend

$y = mod(1, 3/4) ;$y == 0.25 because the divisor is a float




Function Reference
Random
trả lại một số ngẫu nhiên.
Random ( [Min [, Max [, Flag]]] )
Parameters
Min giới hạn giá trị nhỏ nhất có thể đạt đc, mặc định = 0
Max giới hạn giá trị lớn nhất có thể đạt đc, mặc định = 1.

Flag
= 0 lấy số thực (mặc định)
= 1 chỉ lấy số nguyên

Return Value
Success:

số
Failure:

trả lại 0 và set @error=1 nếu tham số ko hợp lệ

Remarks
By default the Random function works with decimal/floating point numbers. If you
want to only have integer/whole number results then set the Flag to 1.

If only one argument is provided, then it is interpreted to be the Max.

The result will be in the range of Min to Max INCLUSIVE when using integers
(just short of Max when using floats).

When using integers Max-Min must be less than 2^31.


Comments based on the original source

This function uses the Mersenne Twister random number generator, MT19937,
written by Takuji Nishimura, Makoto Matsumoto, Shawn Cokus, Matthe Bellew
and Isaku Wada.

The Mersenne Twister is an algorithm for generating random numbers. It was
designed with consideration of the flaws in various other generators. The period,
2
19937
-1, and the order of equidistribution, 623 dimensions, are far greater. The
generator is also fast; it avoids multiplication and division, and it benefits from
caches and pipelines. For more information see the inventors' web page at


Copyright (C) 1997 - 2002, Makoto Matsumoto and Takuji Nishimura, All rights
reserved.

Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:

1. Redistributions of source code must retain the above copyright notice, this list of
conditions and the following disclaimer.

2. Redistributions in binary form must reproduce the above copyright notice, this
list of conditions and the following disclaimer in the documentation and/or other
materials provided with the distribution.

3. The names of its contributors may not be used to endorse or promote products
derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED
WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE

COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY
WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
Related
Int, Round, SRandom
Example

;Flip of coin
If Random() < 0.5 Then ; Returns a value between 0 and 1.
$msg = "Heads. 50% Win"
Else
$msg = "Tails. 50% Loss"
Endif
MsgBox(0,"Coin toss", $msg )


;Roll of a die
msgBox(0, "Roll of die", "You rolled a " & Random(1, 6, 1) )

$StockPrice = 98
;In the middle of a stock market simulation game
$StockPriceChange = Random(-10, 10, 1) ; generate an integer between -10 and
10
$StockPrice = $StockPrice + $StockPriceChange

If $StockPriceChange < 0 Then
MsgBox(4096, "Stock Change", "Your stock dropped to $" & $StockPrice)
ElseIf $StockPriceChange > 0 Then
MsgBox(4096, "Stock Change", "Your stock rose to $" & $StockPrice)
Else
MsgBox(4096, "Stock Change", "Your stock stayed at $" & $StockPrice)
Endif


;Random letter
If Random() < 0.5 Then
;Capitals
$Letter = Chr(Random(Asc("A"), Asc("Z"), 1))
Else
;Lower case
$Letter = Chr(Random(Asc("a"), Asc("z"), 1))
Endif




Function Reference