------- iOS培訓、android培訓、java培訓、期待與您交流! ----------
#import <Foundation/Foundation.h> int main(int argc, const char * argv[]) { @autoreleasepool { NSArray *arr1 = [NSArray array]; NSLog(@"%@",arr1); NSArray *arr2 = [NSArray arrayWithObject:@"1"]; NSLog(@"%@",arr2); NSArray *arr3 = [NSArray arrayWithObjects:@"1", @"2",@1,nil];//nil表示數組賦值結束 常見寫法 NSLog(@"%@",arr3); NSArray *arr4 = [[NSArray alloc] initWithObjects:@"3",[NSNull null],@"4",nil]; NSLog(@"%@",arr4); NSArray *arr5 = [NSArray arrayWithArray:arr3]; NSLog(@"%@",arr5); } return 0; } |