iOS Base64編解碼

標籤：base64   encoding   

Encoding

<pre name="code" class="html">NSData *plainData = [plainString dataUsingEncoding:NSUTF8StringEncoding];NSString *base64String = [plainData base64EncodedStringWithOptions:0];NSLog(@"%@", base64String);// Zm9v

Decoding

NSData *decodedData = [[NSData alloc] initWithBase64EncodedString:base64String options:0];NSString *decodedString = [[NSString alloc] initWithData:decodedData encoding:NSUTF8StringEncoding];NSLog(@"%@", decodedString); // foo

Swift

let plainString = "foo"

Encoding

let plainData = plainString.dataUsingEncoding(NSUTF8StringEncoding)let base64String = plainData?.base64EncodedStringWithOptions(.allZeros)println(base64String!) // Zm9v

Decoding

let decodedData = NSData(base64EncodedString: base64String!, options: .allZeros)let decodedString = NSString(data: decodedData, encoding: NSUTF8StringEncoding)println(decodedString) // foo

iOS Base64編解碼