iOS Xcode中去掉中括号的方法

直接传带中括号的字符串调用下面的方法，该方法返回的值就是去除中括号的字符串

+ (NSString *)changeStringWithString: (NSString *)string
{
NSScanner*scanner = [NSScanner scannerWithString: string];
    NSString*str =nil;
    while([scannerisAtEnd]==NO)
    {
        //找到"["的起始位置
        [scanner scanUpToString:@"【"intoString:nil];
        //找到"]"的结束位置
        [scanner scanUpToString:@"】"intoString:&text];
        //替换字符
       string = [string stringByReplacingOccurrencesOfString:[NSStringstringWithFormat:@"%@>", str]withString:@""];
    }
    returnstring;
}+ (N