1.非ARC模式下
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+ (NSString *)encodeToPercentEscapeString: (NSString *) input { // Encode all the reserved characters, per RFC 3986 // ()
NSString *outputStr = (NSString *)CFURLCreateStringByAddingPercentEscapes(kCFAllocatorDefault,(CFStringRef)input,NULL,(CFStringRef)@"!*'();:@&=+$,/?%#[]",
kCFStringEncodingUTF8);
return outputStr;
}
+ (NSString *)decodeFromPercentEscapeString: (NSString *) input {
NSMutableString *outputStr = [NSMutableString stringWithString:input];
[outputStr replaceOccurrencesOfString:@"+"
withString:@" "
options:NSLiteralSearch
range:NSMakeRange(0, [outputStr length])];
return [outputStr stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
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2. ARC模式下
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- (NSString *)encodeToPercentEscapeString: (NSString *) input{ NSString*
outputStr = (__bridge NSString *)CFURLCreateStringByAddingPercentEscapes(
NULL, /* allocator */
(__bridge CFStringRef)input,
NULL, /* charactersToLeaveUnescaped */
(CFStringRef)@"!*'();:@&=+$,/?%#[]",
kCFStringEncodingUTF8);
return
outputStr;}- (NSString *)decodeFromPercentEscapeString: (NSString *) input
{NSMutableString *outputStr = [NSMutableString stringWithString:input];[outputStr replaceOccurrencesOfString:@"+"withString:@"
"options:NSLiteralSearchrange:NSMakeRange(0,
[outputStr length])];return
[outputStr stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];}
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以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持服务器之家。
原文链接：http://blog.csdn.net/tianyitianyi1/article/details/17579997