character r

The problem is as follows:The persons table has two fields: id and name.The content in the document persons.txt (tabs are used to separate fields in each line ):1 Bush2 Carter3 BushUse load data local infile into persons.txt "into table persons in

In textarea, press enter to generate the Escape Character \ r \ n. In some cases, we do not need the two escape characters. In textarea, press enter to generate the Escape Character \ r \ n. In some cases, we do not need these two escape characters,

I. About Tr Use TrYou can easily implement many basic sed functions. You can TrAs SED's (extremely) Simplified variant: it can replace another character with one character, or it can completely remove some characters. You can also use it to remove

Linux text editor Vim/Vi details, vimvi Ii. Text Editor Vim/Vi (later called the upgraded version of Vi) Vim/vi is a powerful full-screen text editor and the most common text editor on linux/unix, it is used to create, edit, and display text files.

1 OverviewThe greedy and non-Greedy modes affect the Matching Behavior of the Child expressions modified by quantifiers. The greedy mode matches as many expressions as possible on the premise that the entire expression matches successfully, the

Phptrim deletes space characters and specified characters. I didn't see the trim function before and thought that he could only delete the blank space, today it was found that it can also delete-nullt-tabn-newlinex0b-vertical list character r-press

Tr is short for translate. With this word, you can probably guess what it is! Yes, it can replace another string with one character string, or it can completely remove some characters. You can also use it to remove duplicate characters. Tr is used

Kankan OriginalThis format is required when sending data in the background with PHP.private void Sendjson () { Initializing a custom handlerCashhandler handler = new Cashhandler (this);Request the primary address, written in the custom application,

This article is mainly similar to the implementation of the wget progress bar, is actually the use of the transfer character \ r, \ r function is to return to the beginning of the line without wrapping Copy Code code as follows:

Knowledge expansion Transfer sequence Description N Line Wrap R Enter T Horizontal tab [/td> Back slash $ Dollar sign " Double quotes

In the source code to enter a newline but do not display such as BR characters we need to escape the characters in PHP to achieve, the following is a look at it.     Knowledge expansion transition sequence description

Sometimes you write scripts with errors that are listed like headings, mostly because your script files are edited under Windows. Windows, the end of each line is \n\r, and in Linux under the end of the file is \ n, then you edit the file in Windows

1. A column in the table and assign its value to a variable:2. Determine if the value of a field is a numberSELECT * from Hr_user where IsNumeric (USID) =1//is a digital select * from Hr_user where IsNumeric (USID) =0//is not a number3. Data set

http://blog.csdn.net/stewen_001/article/details/22871737See a programString t = "a| | b| | c| | D ";string["temp = T.split ("\\|\\|" System. out . println (Temp.length); The main thing is: what does "\\|\\|" mean?began a bit of a mask, and then a

Getting started with iOS development☞C language (char type, case), ioscharChar type Encoding scheme ASCII: 'A' = 65 'A' = 97 '0' = 48 GB2312: 2Bytes corresponds to a Chinese character Tao Zhu Xiaoji (this encoding does not contain the word "yellow"

#!/usr/bin/env python#-*-coding:utf-8-*-import reprint (Re.findall (' Alex ', ' Yyyyabbblalexrrreooox ') # "." Wildcard matches except "\" Other than the character print (Re.findall (' al.x ', ' Yyyyaalqxbbblalexrrreooox ')) # "^" matches at the

Non-local account in ubuntu. the profile file was accidentally modified in the account today. profile file, so that the account cannot enter after the restart, click the account to log on to the black screen, and then return to the Account Login

1. DOM the basic conceptThe DOM is the Document Object model, which is a tree model; a document is a label document; An object is a document; A model refers to something that is abstract.2. Window Object Manipulationfirst, properties and methods

In textarea, press enter to generate the Escape Character \ r \ n. In some cases, we do not need these two escape characters, that is, clearing textarea. The following method is not empty, but can achieve similar results. If you press enter in

Java escape characters JAVA escape characters:1. octal escape sequence: \ + 1 to 3 digits and 5 digits; range: '\ 000 '~ '\ 100'\ 0: NULL characters2. Unicode escape characters: \ u + four hexadecimal numbers; 0 ~ 65535\ U0000: NULL