함수 lowercase()

1 개요

downcase

lc

lower()

lowercase()

lowercaseString

strtolower()

tolower

toLowerCase

• Definition: lowercase(string) returns string
• Description: Returns the string in lower case.

2 Bash

Bash lowercase() 문서를 참고하십시오.

echo "Hello, World" | tr 'A-Z' 'a-z'

3 C

#include <ctype.h>
#include <stdio.h>
int main(void) {
    char string[] = "Wiki means fast?";
    int i;
    for (i = 0; i < sizeof(string); ++i) {
        string[i] = tolower(string[i]);
    }
    puts(string); // wiki means fast?
    return 0;
}

4 C++

C++ strtolower() 문서를 참고하십시오.

#include <iostream>
using namespace std;
string strtolower(string str) {
    for(auto &c: str) c = tolower(c);
    return str;
}
int main() {
    cout << strtolower("Hello World") << endl; // hello world
}

#include <iostream>
#include <algorithm> // transform
using namespace std;
string strtolower(const string str) {
    string ret = str;
    transform(ret.begin(), ret.end(),ret.begin(), ::tolower);
    return ret;
}
int main() {
    cout << strtolower("Hello World") << endl; // hello world
}

5 C#

"Wiki means fast?".ToLower();        // "wiki means fast?"

6 Excel

=LOWER("HELLO")
// hello

7 Go

Go strings.ToLower() 문서를 참고하십시오.

package main
import (
	"fmt"
	"strings"
)
func main() {
	fmt.Print( strings.ToLower("HELLO") )
}

8 Java

class MyClass {
    public static void main(String[] args) {
        String str = "Hello World!";
        System.out.println(str.toLowerCase());
    }
}

9 JavaScript

var str = "Hello World!";
console.log(str.toLowerCase());

10 Objective-C

NSString *str = @"Hello World!";
NSLog(@"%@", [str lowercaseString];

11 Perl

$str = "Hello World!";
print lc($str);

12 PHP

PHP strtolower() 문서를 참고하십시오.

echo strtolower( "Hello World!" ); # hello world!

13 Python

Python .lower() 문서를 참고하십시오.

s = "Hello World!"
print( s.lower() )

14 Ruby

str = "Hello World!"
str2 = str.downcase
puts str2

str = "Hello World!"
str.downcase!
puts str

15 Scheme

(use-modules (srfi srfi-13))
(string-downcase "Wiki means fast?") ;  "wiki means fast?"

16 Windows Batch

@ECHO OFF
SETLOCAL ENABLEDELAYEDEXPANSION

SET _SAMPLE=Hello, World

CALL :LCase _SAMPLE _RESULTS
ECHO.%_RESULTS%

ENDLOCAL
GOTO:EOF

:LCase
SET _UCase=A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
SET _LCase=a b c d e f g h i j k l m n o p q r s t u v w x y z
SET _Lib_UCase_Tmp=!%1!
IF /I "%0"==":UCase" SET _Abet=%_UCase%
IF /I "%0"==":LCase" SET _Abet=%_LCase%
FOR %%Z IN (%_Abet%) DO SET _Lib_UCase_Tmp=!_Lib_UCase_Tmp:%%Z=%%Z!
SET %2=%_Lib_UCase_Tmp%
GOTO:EOF

REM hello, world

17 SQL

17.1 MySQL

SELECT LOWER( "HELLO WORLD" ); -- hello world

17.2 Oracle

SELECT LOWER('HELLO WORLD') FROM DUAL;
-- hello world

18 SQLite

SELECT LOWER( "HELLO WORLD" ); -- hello world

19 같이 보기

• 함수 uppercase()
• 함수 capitalize()
• SQL 함수

20 References

• http://eqcode.com/wiki/lowercase
• http://www.robvanderwoude.com/battech_convertcase.php