如何编码网址？

Question

我有一个textView1，当我输入内容并按下按钮时，URL会打开。当我输入英文时，一切正常，但我也必须输入俄语并且不起作用。所以我需要编码。有人可以帮忙编码吗？

我的SozdikViewerController.h文件

import <UIKit/UIKit.h>
@interface SozdikViewController : UIViewController
@property (strong, nonatomic) IBOutlet UITextView *textView1;
@property (weak, nonatomic) IBOutlet UIButton *Button_Ask;
-(IBAction)ask;
@end

我的SozdikViewerController.m文件

#import "SozdikViewController.h"
-(IBAction)ask{


 NSString *urlString = [NSString stringWithFormat:@"http://www.audaru.kz/?product=SoylemMT&word=%@&app_request=true", [[self textView1] text]];

  NSString *newString;
newString = [urlString stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:newString]];
}
@end

Answer 1

newString = [urlString stringByAddingPercentEscapesUsingEncoding：NSUTF8StringEncoding];