String을 int로 변환 편집하기

[[category: conversion]]
[[category: String]]
[[category: Int]]
;String to int
;String to integer
;atoi
;parseInt
;Integer.parseInt

==C#==
[[category: Csharp]]
<source lang='csharp'>
String str = "123";
int i = int.Parse(str);
</source>

==Java==
[[category: Java]]
<source lang='java'>
String str = "123";
int i = Integer.parseInt(str);
</source>

==Javascript==
[[category: javascript]]
<source lang='javascript'>
parseInt('123.45')  // 123
parseInt('77')      // 77
</source>

==Objective-C==
[[category: Objective-C]]
<source lang='objc'>
NSString *s = @"42";
int i = [s intValue];
</source>

==Perl==
[[category: Perl]]
<source lang='perl'>
print 0 + '42';                       # 42
</source>

==PHP==
[[category: PHP]]
<source lang='php'>
echo intval('42');                    // 42
echo intval('+42');                   // 42
echo intval('-42');                   // -42

echo intval('42,000');                // 42

echo intval(42);                      // 42
echo intval(4.2);                     // 4
echo intval(042);                     // 34
echo intval('042');                   // 42
echo intval(1e10);                    // 1410065408
echo intval('1e10');                  // 1
echo intval(0x1A);                    // 26

echo 0 + '42';                        // 42
</source>

==Python==
[[category: Python]]
<source lang='python'>
s = "123"
i = int(s)
</source>

==Ruby==
[[category: Ruby]]
<source lang='ruby'>
str = "123"
i = str.to_i
</source>

==VB==
[[category: VB]]
<source lang='vb'>
Dim s As String
Dim i As Integer

s = "42"
i = Val(s)
</source>

==See also==
*[[int to string]]
*[[removing leading zero]]
*[[string to number]]
*[[extract number]]