摘要：
NSString *oneStr =@"one+two";NSString *twoStr =CFURLCreateStringByAddingPercentEscapes(kCFAllocatorDefault, (CFStringRef)oneStr, NULL, CFSTR(":/?#[]@!$&’()*+,;="), kCFStringEncodingUTF8);[request setHTTPBody:[twoStr dataUsingEncoding:NSUTF8StringEncoding]];[twoStr release];[u 阅读全文