"Mu-Guest Network: basic framework for iOS Basics" Learning notes < four > Nsmutablearray

1 intMainintargcConst Char*argv[]) {2 @autoreleasepool {3Person *P1 = [[Person alloc] Initwithname:@"Zhang San"];4Person *P2 = [[Person alloc] Initwithname:@"John Doe"];5Person *P3 = [[Person alloc] Initwithname:@"Harry"];6         //3 Creating an array7Nsarray *array =[[Nsarray alloc] initwithobjects:p1,p2,p3, nil];8Nsmutablearray *arraym =[[Nsmutablearray alloc] init];9         //1 adding elementsTen         //add one of the methods: [Array addobject:p1]; One [Arraym Addobjectsfromarray:array]; A         //2 Note that this method is all elements from an array, so you need to create an array in front-->3 -NSLog (@"%@", Arraym); -          the         //Delete Element -         //Delete the specified element, and of course other, can be prompted by the Xcode code - [Arraym REMOVEOBJECT:P1]; -NSLog (@"%@", Arraym); +          -         //the position of the interchange element +[Arraym Exchangeobjectatindex:0Withobjectatindex:1]; ANSLog (@"%@", Arraym); at     } -     return 0; -}

"Mu-Guest Network: basic framework for iOS Basics" Learning notes < four > Nsmutablearray