从IOS应用程序中的字符串中删除"\"

Question

我从带有反斜杠字符的json响应中获取一个url作为字符串.我想从url中删除'\'字符.我构建了代码,但它无法正常工作.代码在这里..

 NSString *responseData = [[NSString alloc]initWithData:[NSData dataWithContentsOfURL:url] encoding:NSUTF8StringEncoding];
    NSString* encodedString = [responseData stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
        NSLog(@"Response ==> %@" ,encodedString);

       // here encodedString is a url which is showing crctly in output and need to trim the \ character.

       // NSString* str = [NSString stringWithFormat: @"encodedString"];
       // str = [str stringByReplacingOccurrencesOfString:@"?" withString:@""];
       // NSLog(@"Response ==> %@" , str);

    encodedString = [encodedString stringByReplacingOccurrencesOfString:@"\\" withString:@""];
        NSLog(@"Response ==> %@" ,encodedString);

但我无法删除这些字符.任何人都可以帮助我摆脱这个问题..提前谢谢.

Answer 1

如果要删除空格和\字符,最好将其删除responseData.

NSString *responseData = [[NSString alloc]initWithData:[NSData dataWithContentsOfURL:url] encoding:NSUTF8StringEncoding];

responseData = [responseData stringByReplacingOccurrencesOfString:@" " withString:@""];
responseData = [responseData stringByReplacingOccurrencesOfString:@"\\" withString:@""];
NSString* encodedString = [responseData stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];