输入框 输入限制

- (BOOL)textView:(UITextView*)textView shouldChangeTextInRange:(NSRange)range replacementText:(NSString*)text{

    if(textView.text.length+text.length-range.length>250) {

        NSString* tmpStr = [NSStringstringWithFormat:@"%@%@",textView.text,text];

        textView.text= [tmpStrsubstringToIndex:250];

        [CommentTool showTextHUDWithView:self andAnimation:YES andTitle:@"最多输入250个字符"];

        returnNO;

    }else{

        returnYES;

    }

}

- (BOOL)textField:(UITextField*)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString*)string{```

    if(textField ==_missionNameTextF) {

        if(textField.text.length+string.length-range.length>100) {

            //        textField.text = ;

            NSString*orderStr = [NSStringstringWithFormat:@"%@%@",[textField.textsubstringToIndex:textField.text.length-range.length],string];

            textField.text= [orderStrsubstringToIndex:100];

            returnNO;

        }else{

            returnYES;

        }

    }else{

        returnYES;

    }

}