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| (다른 사용자 한 명의 중간 판 4개는 보이지 않습니다) | |||
| 8번째 줄: | 8번째 줄: | ||
==Bash== | ==Bash== | ||
[[category:bash]] | [[category:bash]] | ||
< | <syntaxhighlight lang='bash'> | ||
systems=("Solar System" "Alpha Centauri" "Barnard's Star") | systems=("Solar System" "Alpha Centauri" "Barnard's Star") | ||
echo ${#systems[@]} | echo ${#systems[@]} | ||
| 14번째 줄: | 14번째 줄: | ||
echo ${#systems[*]} | echo ${#systems[*]} | ||
# 3 | # 3 | ||
</ | </syntaxhighlight> | ||
==C#== | ==C#== | ||
[[category: Csharp]] | [[category: Csharp]] | ||
< | <syntaxhighlight lang='csharp'> | ||
string[] weekDays2 = { "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" }; | string[] weekDays2 = { "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" }; | ||
MessageBox.Show(weekDays2.Length); | MessageBox.Show(weekDays2.Length); | ||
// shows 7 | // shows 7 | ||
</ | </syntaxhighlight> | ||
==Go== | |||
[[분류: Go]] | |||
{{참고|Go len()}} | |||
<syntaxhighlight lang='go'> | |||
package main | |||
import "fmt" | |||
func main() { | |||
fruits := []string{"apple", "banana", "mango"} | |||
fmt.Println( len(fruits) ) // 3 | |||
} | |||
</syntaxhighlight> | |||
==Java== | ==Java== | ||
[[category: Java]] | [[category: Java]] | ||
< | <syntaxhighlight lang='java'> | ||
String[] weekDays2 = { "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" }; | String[] weekDays2 = { "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" }; | ||
System.out.println(weekDays2.length); | System.out.println(weekDays2.length); | ||
// shows 7 | // shows 7 | ||
</ | </syntaxhighlight> | ||
==JavaScript== | ==JavaScript== | ||
[[category: JavaScript]] | [[category: JavaScript]] | ||
< | <syntaxhighlight lang='javascript'> | ||
var weekDays2 = [ "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" ]; | var weekDays2 = [ "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" ]; | ||
document.write(weekDays2.length); | document.write(weekDays2.length); | ||
// shows 7 | // shows 7 | ||
</ | </syntaxhighlight> | ||
==Objective-C== | ==Objective-C== | ||
[[category: Objective-C]] | [[category: Objective-C]] | ||
< | <syntaxhighlight lang='objc'> | ||
NSArray *weekDays2 = [NSArray arrayWithObjects:@"Sun", @"Mon", @"Tue", @"Wed", @"Thu", @"Fri", @"Sat", nil]; | NSArray *weekDays2 = [NSArray arrayWithObjects:@"Sun", @"Mon", @"Tue", @"Wed", @"Thu", @"Fri", @"Sat", nil]; | ||
NSLog(@"%lu", [weekDays2 count]); | NSLog(@"%lu", [weekDays2 count]); | ||
// shows 7 | // shows 7 | ||
</ | </syntaxhighlight> | ||
==Perl== | ==Perl== | ||
[[category: Perl]] | [[category: Perl]] | ||
< | <syntaxhighlight lang='perl'> | ||
@nums = (1,2,3,4); | @nums = (1,2,3,4); | ||
print scalar(@nums); | print scalar(@nums); | ||
# shows 4 | # shows 4 | ||
</ | </syntaxhighlight> | ||
==PHP== | ==PHP== | ||
[[category: PHP]] | [[category: PHP]] | ||
{{참고|PHP count()}} | {{참고|PHP count()}} | ||
< | <syntaxhighlight lang='php'> | ||
$nums = | $nums = [1,2,3,4]; | ||
echo count($nums); | echo count($nums); | ||
// shows 4 | // shows 4 | ||
</ | </syntaxhighlight> | ||
==POSIX Shell== | ==POSIX Shell== | ||
< | <syntaxhighlight lang='bash'> | ||
WEEKDAYS2="Sun Mon Tue Wed Thu Fri Sat" | WEEKDAYS2="Sun Mon Tue Wed Thu Fri Sat" | ||
echo $WEEKDAYS2 | tr ' ' '\n' | grep -cP '\S+' | echo $WEEKDAYS2 | tr ' ' '\n' | grep -cP '\S+' | ||
# 7 | # 7 | ||
</ | </syntaxhighlight> | ||
==Python== | ==Python== | ||
[[category: Python]] | [[category: Python]] | ||
{{참고|Python len()}} | {{참고|Python len()}} | ||
< | <syntaxhighlight lang='python'> | ||
nums = [1,2,3,4] | nums = [1,2,3,4] | ||
print len(nums) | print len(nums) | ||
# shows 4 | # shows 4 | ||
</ | </syntaxhighlight> | ||
==R== | |||
[[분류: R]] | |||
{{참고|R언어 length()}} | |||
<syntaxhighlight lang='r'> | |||
x <- c("apple","banana","orange") | |||
cat( length(x) ) | |||
# 3 | |||
</syntaxhighlight> | |||
<syntaxhighlight lang='r'> | |||
cat( length(diag(4)) ) | |||
# 16 | |||
</syntaxhighlight> | |||
==Ruby== | ==Ruby== | ||
[[category: Ruby]] | [[category: Ruby]] | ||
< | <syntaxhighlight lang='ruby'> | ||
nums = [1,2,3,4] | nums = [1,2,3,4] | ||
puts nums.size | puts nums.size | ||
# shows 4 | # shows 4 | ||
</ | </syntaxhighlight> | ||
==같이 보기== | ==같이 보기== | ||
2020년 11월 2일 (월) 02:31 기준 최신판
1 개요[ | ]
- len
- length
- count
- 배열의 길이
2 Bash[ | ]
systems=("Solar System" "Alpha Centauri" "Barnard's Star")
echo ${#systems[@]}
# 3
echo ${#systems[*]}
# 3
3 C#[ | ]
string[] weekDays2 = { "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" };
MessageBox.Show(weekDays2.Length);
// shows 7
4 Go[ | ]
Go len() 문서를 참고하십시오.package main
import "fmt"
func main() {
fruits := []string{"apple", "banana", "mango"}
fmt.Println( len(fruits) ) // 3
}
5 Java[ | ]
String[] weekDays2 = { "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" };
System.out.println(weekDays2.length);
// shows 7
6 JavaScript[ | ]
var weekDays2 = [ "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" ];
document.write(weekDays2.length);
// shows 7
7 Objective-C[ | ]
NSArray *weekDays2 = [NSArray arrayWithObjects:@"Sun", @"Mon", @"Tue", @"Wed", @"Thu", @"Fri", @"Sat", nil];
NSLog(@"%lu", [weekDays2 count]);
// shows 7
8 Perl[ | ]
@nums = (1,2,3,4);
print scalar(@nums);
# shows 4
9 PHP[ | ]
PHP count() 문서를 참고하십시오.$nums = [1,2,3,4];
echo count($nums);
// shows 4
10 POSIX Shell[ | ]
WEEKDAYS2="Sun Mon Tue Wed Thu Fri Sat"
echo $WEEKDAYS2 | tr ' ' '\n' | grep -cP '\S+'
# 7
11 Python[ | ]
Python len() 문서를 참고하십시오.nums = [1,2,3,4]
print len(nums)
# shows 4
12 R[ | ]
R언어 length() 문서를 참고하십시오.x <- c("apple","banana","orange")
cat( length(x) )
# 3
cat( length(diag(4)) )
# 16
13 Ruby[ | ]
nums = [1,2,3,4]
puts nums.size
# shows 4
14 같이 보기[ | ]
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