IOS实用功能-在swift文件中调用OC代码

在目录中创建OC相关文件

//
//  SumNumbers.h
//  Dome2test
//
//  Created by 郭文亮 on 2018/11/23.
//  Copyright © 2018年 finalliang. All rights reserved.
//

#import 

@interface SumNumbers : NSObject
//添加一个整形属性
@property(nonatomic,assign) int type;
//添加一个方法，传入两个整形参数，并返回两个整形参数的和
- (int)sum:(int)number1 andNumber2:(int)number2;
@end

----------------------------------------------------------------------------------------

//
//  SumNumbers.m
//  Dome2test
//
//  Created by 郭文亮 on 2018/11/23.
//  Copyright © 2018年 finalliang. All rights reserved.
//

#import "SumNumbers.h"/Users/finalliang/Desktop/code/Dome2test/Dome2test/menu.json

@implementation SumNumbers
- (int)sum:(int)number1 andNumber2:(int)number2{
    return number1 + number2;
}

@end
----------------------------------------------------------------------------------------
//
//  Use this file to import your target's public headers that you would like to expose to Swift.
//
//在桥接头文件中，引入类的头文件
#import "SumNumbers.h"

最后在视图控制器中直接调用即可

//
//  ViewController.swift
//  Dome2test
//
//  Created by 郭文亮 on 2018/11/23.
//  Copyright © 2018年 finalliang. All rights reserved.
//
import UIKit
class ViewController: UIViewController {
    
    //MARK: -
    //MARK: viewDidLoad
    override func viewDidLoad() {
        super.viewDidLoad()
        let sumNumber = SumNumbers()
        let result = sumNumber.sum(1,andNumber2: 2)
        print("The result:\(result)")
    }
    
    override func didReceiveMemoryWarning() { super.didReceiveMemoryWarning() }
}