//uiwindow創(chuàng)建的四個步驟 //(1)給大小 self.window = [[UIWindow alloc]initWithFrame:...

//UIview給大小 UIView *redview = [[UIView alloc]initWithFrame:CGRectMake(20...

UIlable //設(shè)置lable上的字 lable.text = @"zhang"; //設(shè)置lable中心對齊 lable.textAlig...

#import "ViewController.h" @interface ViewController () @end @implementa...

#import "ViewController.h" @interface ViewController () @property(nonato...

#import "ViewController.h"#import#import "Teacher.h" #import "Student.h"...

#import "databasehandle.h" #import@interface databasehandle () /**用來存放數(shù)據(jù)...

import Foundationprint("Hello, World!") //在swift中使用print輸出 //1.定義一個(常量le...

#import "ViewController.h" @interface ViewController () @end @implementa...