This is a creation in
Article, where the information may have evolved or changed.
StarDict dictionary idx file format:
Each entry contains three fields in a list of words:
WORD_STR; A utf-8 string terminated by '.
An utf-8 encoded string that ends with a '/' Terminator. The length of the word_str will be less than 256
Word_data_offset; Word data ' s offset in. dict file
The offset of the word data in the. dict file,
If The version is "3.0.0" and "idx
Last week finished writing the code, but because did not notice the implementation of the Softmax related to the result is not correct, correct results can be corrected, with 200 pictures to iterate 200 times can be more than 90% of the correct rate, parameter settings have yet to be optimized, in addition to consider using multi-threaded acceleration, There is still a problem here (need to be modified, use caution).Please refer to the previous article http://blog.csdn.net/xuanyuansen/article/de
prompt):mysql> show databases;
This command may display the following information:
+----------+
| Database |
+----------+
| MySQL |
| Test |
+----------+
2 rows in Set (0.01 sec)
In order to define a new database (example), type:
mysql> CREATE DATABASE example;
You will see an answer such as:
Query OK, 1 row affected (0.17 sec) Very fat, we now have a new database. Now we can create a new table in the library, but first we need to select the new database:
Mys
table, simply double-click or run C:\mysql\bin\mysql.exe.
If you want to see which tables have been defined in MySQL, you can use (note that mysql> is a terminal prompt):
mysql> show databases;
This command may display the following information:
+----------+
| Database |
+----------+
| MySQL |
| Test |
+----------+
2 rows in Set (0.01 sec)
In order to define a new database (example), type:
mysql> CREATE DATABASE example;
You will see an answer such as:
Query OK, 1 row affecte
Username-string with a maximum length of 30
User surname-string with a maximum length of 50
Free Info-string with a maximum length of 100
At the MySQL prompt, type the following command to create a table:
MySQL> create table tbl (idx integer (3), UserName varchar (30), LastName varchar (50), FreeText varchar (100 ));
The answer should be:
Query OK, 0 rows affected (0.01 sec)
Well, let's take a look at what the
User surname-string with a maximum length of 50
Free Info-string with a maximum length of 100
At the MySQL prompt, type the following command to create a table:
MySQL> create table tbl (idx integer (3), UserName varchar (30), LastName varchar (50), FreeText varchar (100 ));
The answer should be:
Query OK, 0 rows affected (0.01 sec)
Well, let's take a look at what the table looks like from the MySQL prompt. type the comman
Free information-a string with a maximum length of 100
At the MySQL prompt, type the following command to create the table:
Mysql> CREATE TABLE tbl (idx integer (3), UserName varchar (+), LastName varchar (+), FreeText varchar (100));
The answer should be:
Query OK, 0 rows affected (0.01 sec)
OK, let's see what the table looks like from the MySQL prompt, type the command:
Mysql> show columns from TBL;
) { NSLog (@ "langarray=%@", object); }Here we can see there is no subscript, through the Nextobject method to traverse. The advantage of this method is to traverse the Nsdictionary and Nsset code is similar, inconvenient is the processing of the subscript will be inconvenient, in addition, the reverse traversal needs to use the Reverseobjectenumerator method.Objective-c developed to 2.0 with the Quick Traverse function, the code is as follows: For (ID object in Langarray) {
This article summarizes the ways in which if is written in the Python learning process
Python instance learning small problems encountered, I change the topic need to display the results of each file, you can use the list and if statement to complete, the article finally is the original topic and the answer
One, if the way
A, procedures
#!/usr/bin/python#-*-Coding:utf-8-*-i = Int (input (' Net profit: '))arr = [1000000, 600000, 400000, 200000, 100000, 0]Rat = [0.01, 0.015, 0.03, 0.05, 0.075, 0.
enumerateobjectsusingblock:^ (id obj, Nsuinteger idx, BOOL *stop) { NSLog (@ "idx=%d, id=%@", idx, obj); }];Here we see that the parameters in the block contain object. Subscript and whether to stop the traversal. It should be said that this can meet the basic all the traversal requirements, there is subscript. There is a flag that executes the object,
double-click or run C:\mysql\bin\mysql.exe.
If you want to see which tables are already defined in MySQL, you can use (note that mysql> is a terminal prompt):
mysql> show databases; This command may display the following information:
+----------+
| Database |
+----------+
| MySQL |
| Test |
+----------+
2 rows in Set (0.01 sec)
To define a new database (example), type:
mysql> CREATE DATABASE example; You will see an answer, such as:
Query OK, 1 row affected (0.17 sec) is very fat, we now have a
.
If you want to see which tables have been defined in MySQL, you can use (note mysql> terminal prompt ):
Mysql> show databases; This command may display the following information:
+ ---------- +
| Database |
+ ---------- +
| Mysql |
| Test |
+ ---------- +
2 rows in set (0.01 sec)
To define a new database (example), type:
Mysql> create database example; You will see an answer, for example:
Query OK, 1 row affected (0.17 sec) is very popular. Now we have a new database. Now we can create a new t
; This command may display the following information:+----------+| Database |+----------+| MySQL || Test |+----------+2 rows in Set (0.01 sec)To define a new database (example), type:mysqlgt; CREATE DATABASE example; You will see an answer, such as:Query OK, 1 row affected (0.17 sec) is very fat, we now have a new database. Now we can create a new table in the library, but first we need to select a new database:Mysqlgt; use example; The answer should be:Database changedNow we can build the table
In MongoDB, there are two ways to calculate aggregations: Pipeline and MapReduce. Pipeline queries are faster than MapReduce, but the power of MapReduce is the ability to execute complex aggregation logic on multiple servers in parallel. MongoDB does not allow pipeline to consume too much system memory for a single aggregation operation, and if an aggregation operation consumes more than 20% of the memory, MongoDB stops the operation directly and outputs an error message to the client.One, the a
Prerequisites OverviewWhen you need to work with multiple URLs at the same time, you can do this in Curl_multi_perform mode, as in code 1:1 //Initializes a multi Curl object2CURLM * Curl_m =Curl_multi_init ();3CURL *my_curl[curl_num];4 Charrcvbuf[curl_num][maxheadlen] = {0 };5 //other initialization code skipped ...6 7 //Execute multiple URLs8 while(running_handles)9 {Ten if(-1==Curl_multi_select (curl_m)) one { aprintf"Curl_multi_select error!\n"); -
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