字符串去掉肩括号和空格

 NSString *deviceTokenStr = [NSString stringWithFormat:@"%@",pToken];    //modify the token, remove the  "<, >"    NSLog(@"    deviceTokenStr  lentgh:  %d  ->%@", [deviceTokenStr length], [[deviceTokenStr substringWithRange:NSMakeRange(0, 72)] substringWithRange:NSMakeRange(1, 71)]);    deviceTokenStr = [[deviceTokenStr substringWithRange:NSMakeRange(0, 72)] substringWithRange:NSMakeRange(1, 71)];    NSLog(@"---PushToken--%@", deviceTokenStr);        //保存deviceToken到本地    NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults];    //去掉空格    [userDefaults setObject:[deviceTokenStr stringByReplacingOccurrencesOfString:@" " withString:@""] forKey:DeviceTokenStringKEY];    [[NSUserDefaults standardUserDefaults] setObject:deviceTokenStr forKey:@"push_token"];    [[NSUserDefaults standardUserDefaults] synchronize];