special attention to the TSS here; if there is no TSS, we can only move from a high privileged level to a low privileged level; we cannot move from a low privilege level to a high privilege level. In other words, if a stack switch is involved, TSS must be used. We can comment out this sentence of the Ltr Ax and see the results (see the last picture).; ------------------------------------------------------------------------Segcode32len equ$-Label_seg_code32; END of [section. S32];===============
adding an item, consider w from the 1->max case
For example:
。。。 Thank you for example Source: http://blog.csdn.net/hanruikai/article/details/7471258
0
Plum
4KG
nt$4500
1
Apple
5KG
nt$5700
2
Orange
2KG
nt$2250
3
Strawberry
1KG
nt$1100
4
Melon
6KG
nt$6700
Put the plum
Backpack load
1
2
3
4
varints
Before understanding the PROTOBUF coding principle, the first thing to understand is varints.Varints is a method of serializing integers with one or more bytes. The smaller the value of an integer, the less the number of bytes to occupy.
The first bit (MSB) of each byte of a varints is used to indicate whether the next byte is or is used to represent the integer. It can be viewed as a next pointer to a single-linked list, 1 points to the next node, and 0 to NULL. The 7 bits of the lower
remuneration by department7934 MILLER 10 1300 87507782 CLARK 10 2450 87507839 KING 10 5000 87507369 SMITH 20 800 108757876 ADAMS 20 1100 108757566 JONES 20 2975 108757788 SCOTT 20 3000 108757902 FORD 20 3000 108757900 JAMES 30 950 94007654 MARTIN 30 1250 94007521 WARD 30 1250 94007844 TURNER 30 1500 94007499 ALLEN 30 1600 94007698 BLAKE 30 2850 9400You can see from the results that the sum () function sums up the divisional distinction. The "Partitio
understand some of the problems and actions that have never been encountered.Learning progress Bar
lines of code (new/cumulative)
Blog Volume (Add/accumulate)
Learning Time (new/cumulative)
Important Growth
Goal
5000 rows
30 Articles
400 hours
First week
200/200
1/4
10/10
Second week
300/500
1/5
10/20
Third week
800/1300
1/6
same length, so all bits just place the initial value. The length of the BITVEC3 is greater than 31, andthe higher-order bit is set to 0. 2. Initializing a Bitset object with a string objectWhen the Bitset object is initialized with a string object , thestring object is directly represented as a bit pattern. The order in which a bit set is read from a string object is right-to-left: String Strval ("1100");BitsetIn the BITVEC4 bit mode , positions
If you put Framer Studio Export framer Framework code into your own Framer framework can be achieved, after all, Framer is open source framework, can do arbitrary hack. If you don't understand, you can go to the following code that I modified before you connect to check:
Once you've tried it, you'll find it framer.generated.js the file.
For DeviceType you can pass in a variable:
Window. Framer.Defaults.DeviceView = {"Devicescale":-1, "orientation": 0, "Contentscale": 1, "DeviceType": G_device
= 0000 1101-----------------ab = 0000 1100a|b = 0011 1101A^b = 0011 0001~a = 1100 0011Operator Description Instance Bitwise AND Operator: Two values that participate in the operation, if two corresponding bits are 1, the result of that bit is 1, otherwise 0 (A B) outputs 12, binary interpretation: 0000 1100| Bitwise OR operator: As long as the corresponding two binary has one for 1 o'clock, the result bit
The precision of floating-point numbers is not JavaScript-specific, because some decimal places are infinite in binary notation Analytics nbsp; JavaScript only has one numeric type number, and all the numbers in JavaScript are represented in IEEE-754 standard format. The precision problem with floating-point numbers is not JavaScript-specific, because some decimal digits are infinite in binary notation: nbsp; decimal nbsp; nbsp; nbsp; nbsp; nbsp; binary 0.1 nbsp; nbsp; nbsp; NB Sp nbsp; nbsp;
displacement address, it and 0x0000ffff after the operation, segment address is blocked, only the displacement address. This will match the original algorithm and get the correct result.This algorithm also does not use the third variable to complete the exchange of value, compared with the arithmetic algorithm it is difficult to understand, but it has its advantages that in the exchange of large data types, it is faster than the arithmetic algorithm. The value of the variable is not moved in me
Summary
In the brush algorithm problem in the process, by some great God's idea of admiration, Fang know behind, mountain outside the mountain _ (: З"∠) _
NOTICE: The following code is based on c++11 to achieve the judgment palindrome
BOOL Judge (const string str)
{
string _str = str;
Reverse (Str.begin (), Str.end ());
return str==_str;
}Convert into system
void Trans ()
{
int dec_num = 0;
cin>>hex>>dec_num;
cout
void Trans ()
{
int dec_num =;
coutTo find 1 of
nearest 0 positive number, not the smallest. The smallest number is-number.max_value.
Decimal precision is missing
The number of JavaScript is double-precision floating-point numbers, which are stored in binary in the computer. When the number of valid digits exceeds 52 digits, there is a loss of precision. Like what:
The decimal 0.1 binary is 0.0 0011 0011 0011 ... (Cycle 0011)The decimal 0.2 binary is 0.0011 0011 0011 ... (Cycle 0011)The addition of 0.1 + 0.2 can be expressed as:e =-4; m =
the back character. The process of its algorithm is as follows:
Calculation of Geohash binary code based on latitude and longitude
The latitude interval of the earth is [ -90,90], if a latitude is 39.92324, the following algorithm can be used to approximate the 39.92324 code:
1) the interval [ -90,90] is divided into [ -90,0], [0,90], known as the left and right interval, can be determined 39.92324 belongs to the right-hand interval [0,90], to mark 1;
2) then the interval [0,90] is divided into
. , | and ^ 's truth table looks like this:
P
Q
P Q
p | q
p ^ Q
0
0
0
0
0
0
1
0
1
1
1
1
1
1
0
1
0
0
1
1
Suppose that if A = 60 and B = 13 are now represented in binary format, they are as follows:
A = 0011 1100B = 0000 1101-----------------ab = 0000 1100a| B = 0011 1101A^b = 0011 0001~a = 1100 0011
comparison operator used for a single condition query is shown in Table 4.1.
"See CD-ROM File": \ 4th Chapter \4.2\table41.sql.
Table 4.1 Comparison operators
Name
Instance
= (equal To)
SELECT * from scott.emp where job= ' MANAGER ';
SELECT * from Scott.emp where sal=1100;
!= (not equal to)
SELECT * from scott.emp where job!= ' MANAGER ';
SELECT * from Scott.emp where sal!=
(subnet mask and IP address and operation): 163.135.0.0
First IP address: 163.135.0.1 End IP Address: 163.135.15.254;
3rd Step: Second network id:163.135.16.0
First IP address: 163.135.16.1 End IP Address: 163.135.31.254.
Five, subnet mask and network ID fast calculation method
CIDR's subnet masks are contiguous 1 and 0 of the connections, and the subnet masks have the following representations:
0000 0000 0
1000 0000 128
1100 0000 128+64=192
1110 000
another rowArg2 is the offset of the current row partition that you want to retrieve. is a positive offset, when one retrieves the number of previous rows back.Arg3 is the value returned when the number represented by Arg2 exceeds the range of the grouping. Look at a few SQL statements: Statement one: Select Row_number () over (order by sale/cnt Desc) as sort, sale/cntFrom (Select-60 as sale,3 as CNT from dual unionSelect sale,6 as CNT from dual unionSelect sale,5 as CNT from dual unionSelect-2
table represents the salary level, with the highest and lowest values for each grade. EMP table for employee's basic informationSql> select * from Salgrade;GRADE Losal Hisal---------- ---------- ----------1 700 12002 1201 14003 1401 20004 2001 30005 3001 9999Sql> Select Empno,ename,sal,grade2 from EMP e inner JOIN Salgrade s3 on e.sal between S.losal and S.hisal;EMPNO ename SAL GRADE---------- ---------- ---------- ----------7369 SMITH 800 17876 ADAMS 1100
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