imac question mark

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 question mark is displayed in SQLPLUS. in linux, the question mark is displayed in sqlplus, as shown below: [oracle @ why-server ~] $ Sqlplus/as sysdba SQL * Plus: Release 11.2.0.1.0 Production on Wed May 15 16:20:03 2013 Copyright (c) 1982,200 9, Oracle. All rights reserved .??? : Oracle Database 11g Enterprise Ed

The existing variable $ time may be of the time type and may be a Unix timestamp, that is, $ time #039; 2011-12-2500: 11: 20 #039 ;; or $ time1324742400. now I want to make a unified conversion, that is, if it is a time type, convert it to U using the strtotime ($ time) function... the existing variable $ time may be of the time type and may be a Unix timestamp, that is $time = '2011-12-25 00:11:20';Or $time = 1324742400. Now I want to make a transformation for unification, that is, if it isT

When debugging, the program reported the following errorThe reason is that after you serialize the entity into XML in C #, there is a question mark in front of it:The XML format is not the correct XML format, so the program error.The solution is to add a piece of code that hides the illegal string at the beginning of the XML, as shown in the following code:Xmlstr = System.Text.RegularExpressions.Regex.Repla

Csv export name uncommon words change question mark csv export data In the user name column, several user names with uncommon characters are changed to "?", The Chinese names of most users are OK, Iconv ("UTF-8", "GBK", $ username); has no effect on uncommon words before export. Uncommon words such as "?", "?", "?", "?" Reply to discussion (solution) "?", "?", "?", "?" It is not uncommon to say that

[Help] phpmyadmin. The Chinese character field is changed to a question mark. Reply to discussion (solution) It may be the encoding of the insert data. you can check whether this is the case on the cmd interface. if so, it is likely that the encoding at the time of receiving the data is inconsistent with the database encoding. If you want to change the encoding of the page, try again. The page is UTF-8 ..

In fact, it is very easy to set chart indexes in INF. The yellow question mark must indicate that you entered it in this way. Hkr, icon, "-18" Change the PCI device to-5. The value is as follows: Computer 0Display 2Mouse 5Keyboard 6FDC 9HDC 9Ports 10NET 15System 0Sound 8Printer 14Monitor 2Network Transport 3Network client 16Network Service 17 If you still have any questions, you can see the value in your

The use of free products has the obligation to promote it, so when using the tool, will automatically display a Help icon, click it will be prompted to visit the official website and appeal for donations, you can remove the icon after paying. Syntaxhighlighter The official approach is beyond reproach, but if we want to cancel the seemingly unsightly icon and don't want to pay for it, what is the solution? Here are three ways I've learned: Method One In front of the Web page, usually add th

Add a question mark after the character that represents the duplicate, such as +?,*?,{2,3}? You can stop matching greedy patterns. var pattern=/\w{2,3}/; Console.log ("AAAA". Match (pattern) [0]); /* result "AAA"; greedy mode will match as many as possible, so it will match 3 duplicate characters * * var pattern2=/\w{2,3}?/; Console.log ("AAAA". Match (PATTERN2) [0]); * * results "AA", add a

When you use SVN, you may encounter this problem, such as the desktop of the file accidentally plus the SVN question mark, so it will look very unsightly, then how to cancel it. The method is simple: First create a Notepad file on the desktop, and then copy the sentence into: for/r. %%a in (.) do @if exist "%%A/.SVN" rd/s/Q "%%A/.SVN", save and change the file's suffix name to bat instead of txt, the file

Problem Using the Xshell connection Aliyun ESC Server Learning C language found all the Chinese into a question mark, initially diagnosed as a character set problem. Solution The Windows Control Panel under the language remove the English Input method solution, the completion of the screenshot below.Paths: Control Panel \ Clock, language and region \ language \ Language Optionsthinking about This situati

Reference Website links. Question mark? When defining a variable, you can add a question mark after the type, indicating that the variable is nullable, and that the variable is not nullable. As follows: var s:string? = null var s2:string = "XXX"//If the variable is assigned null, compilation does not passThe setter met

Regular Expressions-four ways to use the question mark Original Symbol Because there are special meanings in regular expressions, so if you want to match, you need to escape, \? There are no quantifiers A question mark can mean repeating the previous 0 or one time, which is either not appearing or appearing once. non

Tags: chinese support. Post logs MySQL pos cas RAC ase Java Web Query, gender word Gencun is the number, 1 for male, 2 for female, take the data when the gender into Chinese characters displayed on the page, the SQL statement as follows, the result has been a problemSelect A.emp_id,a.emp_name, case when a.emp_gendar=1 then ' Male ' when a.emp_gendar=2 then ' female ' end as Emp_gendar, B.post_nameFrom T_employee_info A, T_position_info bwhere a.post_id = b.post_id; Gender in the page does not a

Ask HTML to PDF Chinese is a question mark solution Html2fpdf Simple HTML to PDF Chinese garbled I can't handle it, I changed it to Html2pdf. Vendor (' html2pdf.html2pdf '); $html 2pdf = new Html2pdf (' P ', ' A4 ', ' fr ', true, ' UTF-8 ', Array (30, 20, 25, 25)); $html 2pdf->parsingcss->fontset (' Dejavusans '); $html 2pdf->writehtml (" Come out, Big Brother.This is a test "); $html 2pdf->output ("Sampl

Tags: Word a database character SQL exists char UNC MySQL Chinese garbledToday, the server in the test, found in the database of Chinese all become question marks! First think of this is the coding problem: So again set the database encoding to UTF8 However, the problem persists: It was later discovered that the root of the problem should be: Although the database encoding is UTF8, the tables and fields in the database are not UTF8 So to solve this

refers to the character set supported by this collation.Such as:Chinese_prc_cs_ai_wsFirst half: Refers to the Unicode character set, chinese_prc_ the pointer to the mainland simplified Unicode collation. The second half of the collation is the suffix meaning:_bin binary Ordering_ci (CS) is case sensitive, CI is not differentiated, CS is case sensitive: Select this option if you want comparisons to treat uppercase and lowercase letters as unequal._ai (AS) is accent-sensitive, AI is not different

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