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When you invoke a micro-interface, if you encounter a nickname or message that contains an expression, you will see an error similar to incorrect string value: ' \xf0\x8f ' for column ' XXX ' when you write the data to MySQL. The reason is that the UTF-8 encoding may be two, three, or four bytes, and the expression above is emoji, which is common in the iphone, and many are four bytes. However, MySQL 5.1.x does not support such four-byte utf-8 encodin

lnmp1.0 the PHP version is 5.3.17 after the default installation. Upgrade php5.3.x and 5.4.X after two cases, and then perform memcache.sh installation The first one is not a problem. The first step, the second is the problem, then the second step is resolved as follows: One: If you want to upgrade from php5.3.17 to a new version of 5.3.x, you'll have to reinsta

Tags: support ThinkPad problem enabled details enter www. Start DirectObjectiveThe virtual machine is using VMware Workstation and is the first to experience a 64-bit system on a virtual machine. When a new virtual machine is created, the VMware Workstation alert appears at runtime: This host supports Intel Vt-x, but Intel Vt-x is disabled.Prompt Informationthe virtual machine has been configured to use the

This article is a small for original, reprinted please indicate the source. I haven't updated the study articles of Cocos2d-x for a long time, recently I have done some things during college, and also made a few small Cocos2d-x programs, and search a lot of information on the Internet, finally, the SDK is successfully packaged into an APK and runs successfully on two Android phones. The small for environmen

Implement POW (x, N).NoticeYou don ' t need the precision of your answer, it's acceptable if the expected answer and your answer ' s Diffe Rence is smaller than 1e-3 .Has you met this question in a real interview?YesExamplePow(2.1, 3) = 9.261Pow(0, 1) = 0Pow(1, 0) = 1Leetcode on the original topic, see my previous blog pow (x, N).Solution One:classSolution { Public: /** * @param

Cocos2d-x-3.2 creation project method, cocos2d-x-3.2 Project 1. first open the terminal, cd to the cocos2d-x-3.2 directory, run the command. /setup. py, according to the prompt to set the corresponding ndk path NDK_ROOT, sdk path ANDROID_SDK_ROOT, ant path ANT_ROOT, cocos2d path cococos_console_root = "cocos2d-x-3.2/to

directories starting with L, you can enter a few more characters to ensure that the unique one can be automatically completed, and then enter/t, continue to press tab to automatically complete 2. sudo unlink/library/tomcat Cancel the/library/tomcat link created during previous installation 3. sudo ln-S/usr/local/Apache-Tomcat-7.0.56// Library/tomcat 4. sudo chown-RCurrent User/Library/tomcat 5. sudo chmod + x/library/tomcat/bin/*. Sh Modify

X Window/X protocol: X Window System Protocol for UNIX and Linux graphics display (X Window or X protocol or x System) X Windows System Protocol, that is,

Original website VMware prompts this host to support Intel Vt-x, but Intel Vt-x is in a disabled state. Intel Vt-x full Name is the Intel virtualization Technology, is Intel virtual technology, open it can enable the hardware platform to run multiple operating systems at the same time, is one of the necessary technology of virtual machine software running, if di

When you use VMware to install a new virtual machine, you are prompted: "This host supports Intel Vt-x, but Intel Vt-x is disabled." ", as shown below: The virtual machine has been configured to use a 64-bit client operating system. However, 64-bit operations cannot be performed. This host supports Intel Vt-x, but Intel Vt-

x Windows/x Protocol: X Window System protocol for UNIX and Linux Graphics display (x window or x Protocol or x System) The X Windows System protocol, the

Is the Python expression i + = x equal to i = i + x? If your answer is yes, then congratulate you on the right 50%, why say only half? According to our general understanding of the two are equivalent, integer operation when the two are not the same, but for the list of operations, is not the same? Let's look at the following two pieces of code: Code 1 >>> L1 = Range (3) >>> L2 = l1>>> L2 + = [3]>>> l1[0, 1

Due to work needs, I have invested in the world of cocos2d-x from as3 game development. The wave of mobile games has come, taking advantage of the Trend . In the process of learning the cocos2d-x, here will try to record the bit in the process. I also read a lot about the introduction of cocos2d-x, here I will explain the reasons for its selection: (1) In 2

Reproduced to: http://blog.163.com/zhoulong19880518@126/blog/static/607097022012824959139/ Recently saw the release of cocos2d-x 2.0.2 upgrade a bit, after the upgrade found that there are a lot of errors, the original code usage has changed some places. In the process of modifying the code, we made some simple records as a memorandum. First: cclayer InitializationCustom layer, Class Name: WorldIn. h:1.x la

In Vue.js, before the Vue is instantiated, they are in a text editor in the form of HTML text. When instantiated, it will go through the creation, compilation, and destruction of three major phases.The following is a life cycle diagram of the Vue.js 1.x instance:Vue.js 1.x life-Cycle hooks1. Init Called synchronously when the instance begins to initialize. Data observations, events, and watcher are

In front of a period of time only Cocos2d-x in IOS platform development, learning Cocos2d-x is not for his cross-platform features? Therefore, we must also master the development under Android, In order to detonate the cross-platform characteristics of Cocos2d-x, play its biggest strengths. Cocos2d-x version developmen

In fact, this blog online a large, why also write out this blog?Online examples are based on the elasticsearch2.x version, not the 5.x version, and there are many are wrong, take it is not directly used to test, there is spring-data no corresponding 5.x version, out of consideration, so use spring boot 2.x to do a demo

Affected Products:Vulnerability Description:Due to the php.ini settings in the php5.3.x version Request_order the default value is GP, resulting in discuz! 6.x/7.x global Variable Defense Bypass vulnerability include/global.func.php code: function daddslashes ($string, $force = 0) {!defined (' MAGIC_QUOTES_GPC ') define (' MAGIC_QUOTES_GPC ', GET_MAGIC_QUOTES_GP

= 128M#myisam_max_sort_file_size = 10G[MySQL]No-auto-rehashMax_allowed_packet = 128Mprompt = '-product-[\[email protected]\h][\d]> 'Default_character_set = UTF8[Myisamchk]Key_buffer_size = 64MSort_buffer_size = 10MRead_buffer = 2MWrite_buffer = 2M[Mysqld_safe]Log-error =/usr/local/mysql/logs/error.logPid-file=/usr/local/mysql/mysqld.pid[Mysqlhotcopy]Interactive-timeoutEofEcho-e "\e[1;34minit MySQL now,please wait...\e[0m"chmod 777/usr/local/mysql #不给权限, the initial error is as follows:#Can ' t

Research on 3D model replacement system of cocos2d-x, cocos2d-x replacement This article will not provide specific implementation and code (because I haven't done it yet), but will analyze the update system I understand and give directions. I. What is a replacement system? In RPG games, different weapons and equipment are replaced, and the character model is changed accordingly. This is the replacement syst