question mark balloon

The thing is this:ubuntu16.04, after installing the Pycharm, only one sh execution file under the bin, want to make the taskbar icon, so create a new file under/usr/share/applications Pycharm.desktop and enter the series of information to Save:[Desktop Entry] Type=applicationname=pycharmcomment=pycharm clientexec=sh/home/liaohuiqiang/download/pycharm-community-2017.1.4 /bin/pycharm.shicon=/home/liaohuiqiang/download/pycharm-community-2017.1.4/bin/pycharm.pngterminal= Falsecategories=application;

Original URL: http://blog.csdn.net/trochiluses/article/details/9048539default value (:-)If the variable is followed by a colon and a minus sign, then the variable is followed by the default value of the variable.$ company=$ printf "%s/n" "${company:-unknown Company}"Unknown CompanyThe actual value of the variable can remain unchanged.Colons can also be omitted without:$ company=$ printf "%s/n" "${company-nightlight Inc"$Specify default value (: =)If the variable is followed by a colon and an equ

The first time you encounter a question mark in a SQL statement in a background program:/** * Method Description: Update the account status by Account ID * @param state status * @param ID Account ID */@Modifying @query ("Update Labaccount t set T.user State =? 1 WHERE T.useracctid =? 2 ") void Updatestate (string state, string id);After the query,? is the role of placeholder, White is the first to take th

Tags: CharSet table background Configuration Recognition View table Create AltToday, the background program, found from the front-end inserted in Chinese, to the background MySQL view is a question mark. Can not be displayed in Chinese, the initial decision is the problem of coding. We use Show variables like ' character_set_% '; And Show variables like ' collation_% '; This command checks to see if the M

Tags: style blog http data io 2014Atitit. To View pre-compilation SQL question mark essence and principle and view native SQL statements1. Pre-compilation principle. 12. PreparedStatement has three major advantages: 13. How to look gene SQL 21. Hb cfg all debug, cant see ... 22. Wsexplorer follow the process crawl pack can be seen: 23. Mysql 5. 6 open logs can be seen 24. different implementations of Mysql

Question mark of the Chinese character string in php. When using php built-in functions to intercept Chinese characters, you may encounter question marks. Below are some examples of Chinese characters accurately intercept. Php has no Chinese characters when dealing with string operations. when using php built-in functions to intercept Chinese characters, you may

When phpadmin and dreamweaver test SQL commands, the question mark is displayed in Chinese. ask the php + MySql experts to solve the problem. I use wamp, apache + php + MySql uses phpadmin to tabulation for the database. in phpadmin, I have changed all character sets to gb2312. Including the preferred parameters in the php webpage The encoding of MySQL is also adjusted. the encoding of the database

Question mark (Chinese) displayed when java posts data to phppost. php post. chinese. php post. chinese. java I verified several statuses. Echo "Hello"; // Hello Echo json_encode ("Hello") // u4f60/u597d I don't care Echo $ _ POST ['key'] //? In fact, I am working on android. the connection package is under org. apache. http. How to post Chinese to php Reply to discussion (solution) Encoding problems

The question mark in C # is an important symbol in C #, which is often ignored by some people (?).Here we will sort out several situations in C:1. Can be empty type modifier "T? ": The basic type of the null type can be any non-null type or any type parameter with struct constraints, but cannot be a null type or reference type.Example: int? Represents an integer that can be empty, and an int ?? The type is

The yellow question mark on the jsp page indicates that our html tag does not comply with the specification. For pages that many people get from the page artist, sometimes many pages have yellow question marks. Why? Multiple annotations found at this line:-Invalid location of tag (form ).-No end tag ( In fact, the reason is very simple. That is to say

Question mark is not used for php minimum matching? PHPcode lt ;? Php $ strr = quot; lt; textarea gt; abc lt;/textarea gt; asdfasdf lt; textarea gt; def lt;/textarea gt; quot; does php use question marks for minimum matching? PHP code AbcAsdfasdfDef"; $ Search = "/(. *) AsdfasdfDef) [1] => Array ([0] => abcAsdfasdfDef) The two textarea match