OC与Swift混合开发

在OC文件中调用Swift相关方法时需设置

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其中值为"项目名称-Swift.h",并在相关文件中导入#import "ObjecAndSwift-Swift.h"

Person类

@interface Person : NSObject
- (void)sayHi:(NSString *)name;
@end

@implementation Person
- (void)sayHi:(NSString *)name{
  NSLog(@"sayhi %@",name);
  }
@end

Swift方法，调用OC

 public class Student: NSObject {

func sayHello(name:String) -> Void {
    print("sayhello to \(name)")
    
    let person = Person()
    person.sayHi("lisi")
    
}

}

在OC中调用Swift

Student *sty = [[Student alloc]init];
[sty sayHello:@"PHP"];