extract characters from string

Reprinted from: http://blog.csdn.net/atgc/article/details/2036799 Thanks to atgc, this problem has been studied for a day and finally solved !! When extracting Chinese characters from the table, you need to consider character sets. Different

[Code] use regular expressions to extract a fixed-length string (including Chinese characters) from the specified starting position in the source string. [version 4][Code] use regular expressions to extract a string of a certain length from the

Some characters in a string are often used in recent projects, which is very tricky to handle. Now we can use the following method to easily process what you want from the string, encapsulate the following method into your own function, which is

How to get from The contents of the tag to extract a fixed number of characters as a post of the introduction? I see Baidu Bar is a post in front of a certain number of characters extracted as a post introduction to display. Let's say the following

Oracle SQL removes Chinese characters and retains numbers or letters. First, let's talk about oracle translate usage: 1. Syntax: TRANSLATE (string, from_str, to_str) 2. Purpose: Return (all appear) replace each character in from_str with the string

/** Reference address of this article: * /// Note: If I use ubuntu11.4 and run shell script sh test, an error is returned. Run/bin/bash test to obtain the correct result. String Truncation in Shell STR = "abc123abcabc" # Calculate the length of

String regex= "[0-9]{2}\\:[0-9]{2}\\:[0-9]{2}"; Extracting xx:xx:xx is also time pattern pattern=pattern.compile (regex); String Input=result.trim (); Matcher matcher=pattern.matcher (input); while (Matcher.find ()) { log.d (TAG, ">>>>>" +

The asp and asp functions that intercept strings are simple and easy to understand: left and right. in php, intercept string from left to right and intercept string from right to left is a function: substr. The asp and asp functions that intercept

How to extract a fixed number of characters from the content of the & amp; lt; p & amp; gt; tag as a post introduction? I think Baidu Post Bar extracts a certain number of characters from the front of a post and displays them as an introduction to

Detailed description of set truncation charactersIn batch processing, the set function is a bit complicated: Setting variables, displaying the names and values of environment variables, performing arithmetic operations, waiting for user input,