【redis槽源码分析】【crm源码怎么用】【益肤面膜源码】65535的源码

【redis槽源码分析】【crm源码怎么用】【益肤面膜源码】65535的源码_65535的原码

时间：2024-12-23 01:12:05 编辑：牛年祝福源码来源：通达信手机看盘软件源码

1.c语言中%u范围是原码0-65535，为什么输出是原码65535
2.我想问一下MD5加密现在分为16位和32位，有什么不同
3.嵌入式问题
4.cè¯è¨ï¼ ä¸ºä»ä¹ä¼è¾åº65535ï¼

65535的源码_65535的原码

c语言中%u范围是0-65535，为什么输出是原码65535

溢出问题，你可以想想为时钟，原码当指向点钟的原码redis槽源码分析时候（0），往回拨一小时（-1）是原码不是点钟

同样0~， 0往回减1就是原码最大值勒，具体原理就相关于数字在计算机中存储的原码源码补码反码的以及存储单元大小的关系了

我想问一下MD5加密现在分为位和位，有什么不同

给你看看流行的原码MD5加密源代码你就知道了。

Private Const BITS_TO_A_BYTE = 8

Private Const BYTES_TO_A_WORD = 4

Private Const BITS_TO_A_WORD =

Private m_lOnBits()

Private m_l2Power()

Private Function LShift(lValue,原码 iShiftBits)

If iShiftBits = 0 Then

LShift = lValue

Exit Function

ElseIf iShiftBits = Then

If lValue And 1 Then

LShift = &H

Else

LShift = 0

End If

Exit Function

ElseIf iShiftBits < 0 Or iShiftBits > Then

Err.Raise 6

End If

If (lValue And m_l2Power( - iShiftBits)) Then

LShift = ((lValue And m_lOnBits( - (iShiftBits + 1))) * m_l2Power(iShiftBits)) Or &H

Else

LShift = ((lValue And m_lOnBits( - iShiftBits)) * m_l2Power(iShiftBits))

End If

End Function

Private Function RShift(lValue, iShiftBits)

If iShiftBits = 0 Then

RShift = lValue

Exit Function

ElseIf iShiftBits = Then

If lValue And &H Then

RShift = 1

Else

RShift = 0

End If

Exit Function

ElseIf iShiftBits < 0 Or iShiftBits > Then

Err.Raise 6

End If

RShift = (lValue And &H7FFFFFFE) \ m_l2Power(iShiftBits)

If (lValue And &H) Then

RShift = (RShift Or (&H \ m_l2Power(iShiftBits - 1)))

End If

End Function

Private Function RotateLeft(lValue, iShiftBits)

RotateLeft = LShift(lValue, iShiftBits) Or RShift(lValue, ( - iShiftBits))

End Function

Private Function AddUnsigned(lX, lY)

Dim lX4

Dim lY4

Dim lX8

Dim lY8

Dim lResult

lX8 = lX And &H

lY8 = lY And &H

lX4 = lX And &H

lY4 = lY And &H

lResult = (lX And &H3FFFFFFF) + (lY And &H3FFFFFFF)

If lX4 And lY4 Then

lResult = lResult Xor &H Xor lX8 Xor lY8

ElseIf lX4 Or lY4 Then

If lResult And &H Then

lResult = lResult Xor &HC Xor lX8 Xor lY8

Else

lResult = lResult Xor &H Xor lX8 Xor lY8

End If

Else

lResult = lResult Xor lX8 Xor lY8

End If

AddUnsigned = lResult

End Function

Private Function md5_F(x, y, z)

md5_F = (x And y) Or ((Not x) And z)

End Function

Private Function md5_G(x, y, z)

md5_G = (x And z) Or (y And (Not z))

End Function

Private Function md5_H(x, y, z)

md5_H = (x Xor y Xor z)

End Function

Private Function md5_I(x, y, z)

md5_I = (y Xor (x Or (Not z)))

End Function

Private Sub md5_FF(a, b, c, d, x, s, ac)

a = AddUnsigned(a, AddUnsigned(AddUnsigned(md5_F(b, c, d), x), ac))

a = RotateLeft(a, s)

a = AddUnsigned(a, b)

End Sub

Private Sub md5_GG(a, b, c, d, x, s, ac)

a = AddUnsigned(a, AddUnsigned(AddUnsigned(md5_G(b, c, d), x), ac))

a = RotateLeft(a, s)

a = AddUnsigned(a, b)

End Sub

Private Sub md5_HH(a, b, c, d, x, s, ac)

a = AddUnsigned(a, AddUnsigned(AddUnsigned(md5_H(b, c, d), x), ac))

a = RotateLeft(a, s)

a = AddUnsigned(a, b)

End Sub

Private Sub md5_II(a, b, c, d, x, s, ac)

a = AddUnsigned(a, AddUnsigned(AddUnsigned(md5_I(b, c, d), x), ac))

a = RotateLeft(a, s)

a = AddUnsigned(a, b)

End Sub

Private Function ConvertToWordArray(sMessage)

Dim lMessageLength

Dim lNumberOfWords

Dim lWordArray()

Dim lBytePosition

Dim lByteCount

Dim lWordCount

Const MODULUS_BITS =

Const CONGRUENT_BITS =

lMessageLength = Len(sMessage)

lNumberOfWords = (((lMessageLength + ((MODULUS_BITS - CONGRUENT_BITS) \ BITS_TO_A_BYTE)) \ (MODULUS_BITS \ BITS_TO_A_BYTE)) + 1) * (MODULUS_BITS \ BITS_TO_A_WORD)

ReDim lWordArray(lNumberOfWords - 1)

lBytePosition = 0

lByteCount = 0

Do Until lByteCount >= lMessageLength

lWordCount = lByteCount \ BYTES_TO_A_WORD

lBytePosition = (lByteCount Mod BYTES_TO_A_WORD) * BITS_TO_A_BYTE

lWordArray(lWordCount) = lWordArray(lWordCount) Or LShift(Asc(Mid(sMessage, lByteCount + 1, 1)), lBytePosition)

lByteCount = lByteCount + 1

Loop

lWordCount = lByteCount \ BYTES_TO_A_WORD

lBytePosition = (lByteCount Mod BYTES_TO_A_WORD) * BITS_TO_A_BYTE

lWordArray(lWordCount) = lWordArray(lWordCount) Or LShift(&H, lBytePosition)

lWordArray(lNumberOfWords - 2) = LShift(lMessageLength, 3)

lWordArray(lNumberOfWords - 1) = RShift(lMessageLength, )

ConvertToWordArray = lWordArray

End Function

Private Function WordToHex(lValue)

Dim lByte

Dim lCount

For lCount = 0 To 3

lByte = RShift(lValue, lCount * BITS_TO_A_BYTE) And m_lOnBits(BITS_TO_A_BYTE - 1)

WordToHex = WordToHex & Right("0" & Hex(lByte), 2)

End Function

Public Function MD5(sMessage)

m_lOnBits(0) = CLng(1)

m_lOnBits(1) = CLng(3)

m_lOnBits(2) = CLng(7)

m_lOnBits(3) = CLng()

m_lOnBits(4) = CLng()

m_lOnBits(5) = CLng()

m_lOnBits(6) = CLng()

m_lOnBits(7) = CLng()

m_lOnBits(8) = CLng()

m_lOnBits(9) = CLng()

m_lOnBits() = CLng()

m_l2Power(0) = CLng(1)

m_l2Power(1) = CLng(2)

m_l2Power(2) = CLng(4)

m_l2Power(3) = CLng(8)

m_l2Power(4) = CLng()

m_l2Power(5) = CLng()

m_l2Power(6) = CLng()

m_l2Power(7) = CLng()

m_l2Power(8) = CLng()

m_l2Power(9) = CLng()

m_l2Power() = CLng()

Dim x

Dim k

Dim AA

Dim BB

Dim CC

Dim DD

Dim a

Dim b

Dim c

Dim d

Const S = 7

Const S =

Const S = 5

Const S = 9

Const S =

Const S = 4

Const S =

Const S = 6

Const S =

x = ConvertToWordArray(sMessage)

a = &H

b = &HEFCDAB

c = &HBADCFE

d = &H

For k = 0 To UBound(x) Step

AA = a

BB = b

CC = c

DD = d

md5_FF a, b, c, d, x(k + 0), S, &HDAA

md5_FF d, a, b, c, x(k + 1), S, &HE8C7B

md5_FF c, d, a, b, x(k + 2), S, &HDB

md5_FF b, c, d, a, x(k + 3), S, &HC1BDCEEE

md5_FF a, b, c, d, x(k + 4), S, &HFC0FAF

md5_FF d, a, b, c, x(k + 5), S, &HCA

md5_FF c, d, a, b, x(k + 6), S, &HA

md5_FF b, c, d, a, x(k + 7), S, &HFD

md5_FF a, b, c, d, x(k + 8), S, &HD8

md5_FF d, a, b, c, x(k + 9), S, &H8BF7AF

md5_FF c, d, a, b, x(k + ), S, &HFFFF5BB1

md5_FF b, c, d, a, x(k + ), S, &HCD7BE

md5_FF a, b, c, d, x(k + ), S, &H6B

md5_FF d, a, b, c, x(k + ), S, &HFD

md5_FF c, d, a, b, x(k + ), S, &HAE

md5_FF b, c, d, a, x(k + ), S, &HB

md5_GG a, b, c, d, x(k + 1), S, &HFE

md5_GG d, a, b, c, x(k + 6), S, &HCB

md5_GG c, d, a, b, x(k + ), S, &HE5A

md5_GG b, c, d, a, x(k + 0), S, &HE9B6C7AA

md5_GG a, b, c, d, x(k + 5), S, &HDFD

md5_GG d, a, b, c, x(k + ), S, &H

md5_GG c, d, a, b, x(k + ), S, &HD8A1E

md5_GG b, c, d, a, x(k + 4), S, &HE7D3FBC8

md5_GG a, b, c, d, x(k + 9), S, &HE1CDE6

md5_GG d, a, b, c, x(k + ), S, &HCD6

md5_GG c, d, a, b, x(k + 3), S, &HF4DD

md5_GG b, c, d, a, x(k + 8), S, &HAED

md5_GG a, b, c, d, x(k + ), S, &HA9E3E

md5_GG d, a, b, c, x(k + 2), S, &HFCEFA3F8

md5_GG c, d, a, b, x(k + 7), S, &HFD9

md5_GG b, c, d, a, x(k + ), S, &H8D2A4C8A

md5_HH a, b, c, d, x(k + 5), S, &HFFFA

md5_HH d, a, b, c, x(k + 8), S, &HF

md5_HH c, d, a, b, x(k + ), S, &H6D9D

md5_HH b, c, d, a, x(k + ), S, &HFDEC

md5_HH a, b, c, d, x(k + 1), S, &HA4BEEA

md5_HH d, a, b, c, x(k + 4), S, &H4BDECFA9

md5_HH c, d, a, b, x(k + 7), S, &HF6BB4B

md5_HH b, c, d, a, x(k + ), S, &HBEBFBC

md5_HH a, b, c, d, x(k + ), S, &HB7EC6

md5_HH d, a, b, c, x(k + 0), S, &HEAAFA

md5_HH c, d, a, b, x(k + 3), S, &HD4EF

md5_HH b, c, d, a, x(k + 6), S, &HD

md5_HH a, b, c, d, x(k + 9), S, &HD9D4D

md5_HH d, a, b, c, x(k + ), S, &HE6DBE5

md5_HH c, d, a, b, x(k + ), S, &H1FACF8

md5_HH b, c, d, a, x(k + 2), S, &HC4AC

md5_II a, b, c, d, x(k + 0), S, &HF

md5_II d, a, b, c, x(k + 7), S, &HAFF

md5_II c, d, a, b, x(k + ), S, &HABA7

md5_II b, c, d, a, x(k + 5), S, &HFCA

md5_II a, b, c, d, x(k + ), S, &HBC3

md5_II d, a, b, c, x(k + 3), S, &H8F0CCC

md5_II c, d, a, b, x(k + ), S, &HFFEFFD

md5_II b, c, d, a, x(k + 1), S, &HDD1

md5_II a, b, c, d, x(k + 8), S, &H6FAE4F

md5_II d, a, b, c, x(k + ), S, &HFE2CE6E0

md5_II c, d, a, b, x(k + 6), S, &HA

md5_II b, c, d, a, x(k + ), S, &H4EA1

md5_II a, b, c, d, x(k + 4), S, &HFE

md5_II d, a, b, c, x(k + ), S, &HBD3AF

md5_II c, d, a, b, x(k + 2), S, &H2AD7D2BB

md5_II b, c, d, a, x(k + 9), S, &HEBD

a = AddUnsigned(a, AA)

b = AddUnsigned(b, BB)

c = AddUnsigned(c, CC)

d = AddUnsigned(d, DD)

'MD5 = LCase(WordToHex(a) & WordToHex(b) & WordToHex(c) & WordToHex(d))

MD5=LCase(WordToHex(b) & WordToHex(c)) 'I crop this to fit byte database password :D

End Function

一般不提倡直接原封不动的调用MD5 ，对应的原码破解密码库多啊。稍微修改下。原码。原码

嵌入式问题

1.us1为 us2为首先us1和us2是原码crm源码怎么用无符号形短整数，而你赋值的时候用的是负数，无符号形和普通短整数都是2个字节有符号形用的是补码表示的，而无符号形直接用无符号的原码，范围是0-（原码是一个数直接化成二进制的数，没有符号第一位是符号位。补码是源码的每位取反再加1，计算机中用补码主要是益肤面膜源码为了让硬件设计方便，这个是基础，所以不多说了）所以你的负数先变成补码-=，把-的补码存到内存中，而你的声明是无符号形短整数，所以使用它的时候就把它当无符号型整数的。unsigned是无符号的意思表示正整数，short int可以表示负数，神魔2.0源码下载用补码表示。

2。 *=

3。if(si1<0)就是说如果si1是负数就执行下面的一个语句，或一个花括号里面的所有语句，由于你的si1是-就会执行{ ui-=(*(unsigned short *)&si2&(~(1L<<)))<<;cout<<ui<<endl;}如果你在这句用的是us1，由于us1是新亚视新源码无符号型整数，所以大于等于0，所以不会执行下面这句

4。&是取地址符号，(unsigned short *)表示把取到的地址强制转换成指向无符号型整数的指针，再用*运算符取出指针指向的内容。其实这句话就是把si2转换成一个临时的unsigned short 型变量

5.1L是表示长整形的1，~(1L<<)表示长整形的1左移位，再对他按位取反结果是

6。先对si2求地址指针，并把求到的地址指针转化成无符号型整数，就是说吧si2化成临时的无符号型整数，再求~(1L<<）把得到的结果和si2的无符号型整数相与（&在位运算中是与的意思），得到的结果最后在左移位。

7。这个程序并没有什么公式，如果你能把我前面的分析看懂，就会知道这个程序其实是考你对C（虽然是C++的文件，但是基本是C的内容）中基本的一些数据转换的概念。因为这个程序在实际中根本没做什么操作，你问了这么多问题说明你对C不是很熟悉，如果你要学C的话我推荐你学谭浩强的《C程序设计》很简单也很全面，网上还有电子书，最后还有对C++的介绍。

希望我打这么多字能够帮到你。

希望能解决您的问题。

cè¯è¨ï¼ ä¸ºä»ä¹ä¼è¾åºï¼

搜索关键词：idea源码目录结构

上一条：戈蘭高地戰雲密佈首腦哈尼雅遭狙殺
下一条：馬爾代夫與印度簽署協議　確認印軍事人員5月10日前撤出馬爾代夫

【redis槽源码分析】【crm源码怎么用】【益肤面膜源码】65535的源码_65535的原码

热门文章