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Conditional Functions The following table provides some of the conditional functions that hive supports. return type Name of function Description T If (Boolean testcondition, T valuetrue, T Valuefalseornull)

Reprinted: http://www.cnblogs.com/bit-sand/archive/2007/07/27/834148.html Today, I suddenly made two performance tests on Null strings. I would like to share with you! The result is as follows: Comparison of the two assignment modes:String STR = "";

This class is used to process strings and is written by foreigners. I have added descriptions of the functions and parameters in it. Usage: ================== Test. asp ============================= Dim StrSet STR = new stringoperationsTest = Str.

In the previous article, I used the string class for several times. Now I need to reload several operators to improve it and to reload the stream operators. [] Operator Overloading + Operator Overloading + = Operator overload > Operator Overloading

The purpose of the copy design: the original object will not be affected when the copy is changed.1. a copy of an object can be created using the copy or mutablecopy method.2. Copy needs to implement the nscopying protocol first, and the created

Common PHP function objects. Character processing function SQL statement reserved character escape longget_magic_quotes_gpc (void) stringaddslashes (stringstr) stringstripslashes (stringstr) character ASCI =========== character processing function ==

Using system; Using system. Collections. Generic; Using system. Windows. forms; Using system. IO; Namespace gobalexception{Static class Program{/// /// Application Program ./// [Stathread]Static void main (){Try{// Handle uncaptured

Manipulation of strings 1. Remove the leading and trailing spaces and special characters of a string function trim () to remove characters from the start position and end position Syntax string trim (String str[, String charlist]), where charlist is

First, the principle of string analysis1. The bottom of the string is a byte array, so can and []byte types are converted to each other;(strings can be stored in text or binary, because they are inherently a byte stream)2. The characters in the

Java magic Hall: String. formatI. Preface String. as a text processing tool, format provides us with powerful and rich String formatting functions. format ("Hello % s", "John");. sort and record the notes below. Ii. overload method // use the

Reprint please indicate source: http://www.cnblogs.com/shrimp-can/p/5645248.htmlWhen it comes to strings, we can define character arrays or pointers, and there is a class that is specifically designed for strings, that is, the class string, which is

========== Character processing function ============= SQL statement reserved character escapes Long get_magic_quotes_gpc (void) String addslashes (String str) String stripslashes (String str) ASCII code for characters int ord (string string)

1, addcslashes string add backslash Syntax: String addcslashes (String str,string charlist); 2, addslashes string add backslash Syntax: string addslashes (String str); Preceded by a specific character with a backslash: ', ', \, NULL 3, Bin2Hex the

CopyCode The Code is as follows: // function: Space check, yes-true, no-false Function isspace (STR: string): Boolean { Switch (STR ){ Case string. fromcharcode (32 ): // Space Break; Case string. fromcharcode (9 ): // Tab key Break; Case string.

In Julia, the value of a Unicode string may be accidentally a pit.Thanks to @gnimuc, provide the following links that can be done as a reference.Http://stackoverflow.com/questions/39501900/truncate-string-in-julia I. Questions and Suggestions Julia>

ASCII (str) returns the ASCII value of the first character of the string str (0 if str is an empty string) mysqlgt; selectASCII ( ASCII (str) returns the ASCII value of the first character of the string str (0 if str is an empty string) mysqlgt;

Create listSample_list = ['A', 1, ('A', 'B')] Python list operationsSample_list = ['A', 'B', 0, 1, 3] Obtain a value in the list.Value_start = sample_list [0]End_value = sample_list [-1] Delete the first value of the ListDel sample_list [0] Insert a

PHP learning notes-string operations 1. remove spaces at the beginning and end of the string and special characters The trim () function is used to remove the start and end characters. Syntax string trim (string str [, string charlist]), where

ASCII (str)Returns the ASCII value of the first character of the string 'str' (0 is returned when 'str' is an empty string)Mysql> selectASCII ('2 ');-> 50Mysql> select ASCII (2 );->50Mysql> select ASCII ('dete ');-> 100ORD (str)If the string 'str'

Public static list getdaylist (date begin, date end )...{ List ls = new arraylist (); String STR; Calendar cal0 = new gregoriancalendar (); Calendar cal1 = new gregoriancalendar (); Cal0.settime (BEGIN ); Cal1.settime (end ); For (INT I = 0;