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ios開發(fā)計(jì)算器,ios計(jì)算器計(jì)算過程

ios 開發(fā)一個(gè)計(jì)算器需要用到那些步驟?

其實(shí)就是想知道怎么開發(fā)ios的app吧?

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首先, 不要倔強(qiáng), 你需要付出99$購買開發(fā)者賬號, 需要一臺(tái)測試用的iphone/ipad, 最好有一臺(tái)mac電腦.

然后, 你會(huì)購買賬號之后, 那個(gè)買賬號的網(wǎng)站會(huì)把這些問題的答案全部告訴你.

最后, 你問題比較多, 就不詳細(xì)描述了, 有耐心的話, 那個(gè)網(wǎng)站會(huì)把所有的告訴你

ios 超級計(jì)算器 怎么實(shí)現(xiàn)的

首先我們要打開手機(jī),然后從iPhone手機(jī)的底部向上滑動(dòng),調(diào)出“控制中心”頁面,然后點(diǎn)擊右上方的“轉(zhuǎn)屏”按鈕,關(guān)閉“豎排方向鎖定”。

iPhone手機(jī)調(diào)用科學(xué)計(jì)算器

第二步:這時(shí)我們的手機(jī)就可以橫豎自由旋轉(zhuǎn)了,接下來在“附加程序”中找到“計(jì)算器”并打開,這時(shí)我們看到的還是簡單的計(jì)算器。

iPhone手機(jī)調(diào)用科學(xué)計(jì)算器

第三步:之后我們只要旋轉(zhuǎn)手機(jī),讓手機(jī)由豎向轉(zhuǎn)為橫向,計(jì)算器就可以變?yōu)椤翱茖W(xué)計(jì)算器”的界面了,這時(shí)用戶就可以算那些復(fù)雜的數(shù)據(jù)了。

iPhone手機(jī)調(diào)用科學(xué)計(jì)算器

斯坦福iOS8開發(fā)計(jì)算器的一個(gè)代碼問題

這是因?yàn)槟愕膙iewcontroller 繼承了UIViewController.而UIViewController 繼承自oc的NSObject. 在swift 中被修飾成@objc class. 那么就必須要遵循oc的selector,在oc中是不支持方法重載的。所以會(huì)報(bào)上面的錯(cuò)誤

如果要解決這種問題有兩種方法

1. 刪除繼承自oc的類

2. 其中一個(gè)方法重命名

你的這種情況,顯然第一種方法不合適,你的控制器還是需要繼承自uiviewcontroller,那么只能用第二種方法,對這個(gè)方法進(jìn)行重命名。

參考:

ios 系統(tǒng)用Objective-C 在sdk上開發(fā)一個(gè)小型計(jì)算器,要求實(shí)現(xiàn)基本的四則運(yùn)算即可,帶源碼和分析

#import UIKit/UIKit.h

@interface LEViewController : UIViewController

{

double a;

double b;

double c;

UITextField *atextField;

UILabel *aLabel;

NSString *str;

NSMutableString *str1;

}

@end

#import "LEViewController.h"

@interface LEViewController ()

@end

@implementation LEViewController

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil

{

self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];

if (self) {

str1=[[NSMutableString alloc]init ];}

return self;

}

/**

*@控制器入口

*

*/

- (void)viewDidLoad

{

[super viewDidLoad];

// Do any additional setup after loading the view.

[self.view setBackgroundColor:[UIColor blueColor] ];

aLabel= [[UILabel alloc]initWithFrame:CGRectMake(100, 20, 80, 40)];

[aLabel setText:@" 計(jì)算器"];

[self.view addSubview:aLabel];

atextField =[[UITextField alloc]initWithFrame:CGRectMake(0, 60, 320, 50)];

[atextField setBorderStyle:UITextBorderStyleRoundedRect];

[self.view addSubview:atextField];

UIButton *button=[UIButton buttonWithType:UIButtonTypeRoundedRect];

[button setFrame:CGRectMake(20, 380, 270, 60)];

[button setTitle:@"=" forState:UIControlStateNormal];

[button addTarget:self action:@selector(go) forControlEvents:UIControlEventTouchUpInside];

[self.view addSubview:button];

UIButton *button1=[UIButton buttonWithType:UIButtonTypeRoundedRect];

[button1 setFrame:CGRectMake(20, 110, 60, 60)];

[button1 setTitle:@"1" forState:UIControlStateNormal];

[button1 addTarget:self action:@selector(one) forControlEvents:UIControlEventTouchUpInside];

[self.view addSubview:button1];

UIButton *button2=[UIButton buttonWithType:UIButtonTypeRoundedRect];

[button2 setFrame:CGRectMake(90, 110, 60, 60)];

[button2 setTitle:@"2" forState:UIControlStateNormal];

[button2 addTarget:self action:@selector(two) forControlEvents:UIControlEventTouchUpInside];

[self.view addSubview:button2];

UIButton *button3=[UIButton buttonWithType:UIButtonTypeRoundedRect];

[button3 setFrame:CGRectMake(160, 110, 60, 60)];

[button3 setTitle:@"3" forState:UIControlStateNormal];

[button3 addTarget:self action:@selector(three) forControlEvents:UIControlEventTouchUpInside];

[self.view addSubview:button3];

UIButton *button4=[UIButton buttonWithType:UIButtonTypeRoundedRect];

[button4 setFrame:CGRectMake(20, 170, 60, 60)];

[button4 setTitle:@"4" forState:UIControlStateNormal];

[button4 addTarget:self action:@selector(four) forControlEvents:UIControlEventTouchUpInside];

[self.view addSubview:button4];

UIButton *button5=[UIButton buttonWithType:UIButtonTypeRoundedRect];

[button5 setFrame:CGRectMake(90, 170, 60, 60)];

[button5 setTitle:@"5" forState:UIControlStateNormal];

[button5 addTarget:self action:@selector(five) forControlEvents:UIControlEventTouchUpInside];

[self.view addSubview:button5];

UIButton *button6=[UIButton buttonWithType:UIButtonTypeRoundedRect];

[button6 setFrame:CGRectMake(160, 170, 60, 60)];

[button6 setTitle:@"6" forState:UIControlStateNormal];

[button6 addTarget:self action:@selector(six) forControlEvents:UIControlEventTouchUpInside];

[self.view addSubview:button6];

UIButton *button7=[UIButton buttonWithType:UIButtonTypeRoundedRect];

[button7 setFrame:CGRectMake(20, 240, 60, 60)];

[button7 setTitle:@"7" forState:UIControlStateNormal];

[button7 addTarget:self action:@selector(seven) forControlEvents:UIControlEventTouchUpInside];

[self.view addSubview:button7];

UIButton *button8=[UIButton buttonWithType:UIButtonTypeRoundedRect];

[button8 setFrame:CGRectMake(90, 240, 60, 60)];

[button8 setTitle:@"8" forState:UIControlStateNormal];

[button8 addTarget:self action:@selector(eight) forControlEvents:UIControlEventTouchUpInside];

[self.view addSubview:button8];

UIButton *button9=[UIButton buttonWithType:UIButtonTypeRoundedRect];

[button9 setFrame:CGRectMake(160, 240, 60, 60)];

[button9 setTitle:@"9" forState:UIControlStateNormal];

[button9 addTarget:self action:@selector(nine) forControlEvents:UIControlEventTouchUpInside];

[self.view addSubview:button9];

UIButton *button10=[UIButton buttonWithType:UIButtonTypeRoundedRect];

[button10 setFrame:CGRectMake(20, 310, 60, 60)];

[button10 setTitle:@"0" forState:UIControlStateNormal];

[button10 addTarget:self action:@selector(zero) forControlEvents:UIControlEventTouchUpInside];

[self.view addSubview:button10];

UIButton *button11=[UIButton buttonWithType:UIButtonTypeRoundedRect];

[button11 setFrame:CGRectMake(90, 310, 60, 60)];

[button11 setTitle:@"." forState:UIControlStateNormal];

[button11 addTarget:self action:@selector(dian) forControlEvents:UIControlEventTouchUpInside];

[self.view addSubview:button11];

UIButton *button12=[UIButton buttonWithType:UIButtonTypeRoundedRect];

[button12 setFrame:CGRectMake(230, 240, 60, 60)];

[button12 setTitle:@"*" forState:UIControlStateNormal];

[button12 addTarget:self action:@selector(chen) forControlEvents:UIControlEventTouchUpInside];

[self.view addSubview:button12];

UIButton *button13=[UIButton buttonWithType:UIButtonTypeRoundedRect];

[button13 setFrame:CGRectMake(160, 310, 60, 60)];

[button13 setTitle:@"AC" forState:UIControlStateNormal];

[button13 addTarget:self action:@selector(ac) forControlEvents:UIControlEventTouchUpInside];

[self.view addSubview:button13];

UIButton *button14=[UIButton buttonWithType:UIButtonTypeRoundedRect];

[button14 setFrame:CGRectMake(230, 310, 60, 60)];

[button14 setTitle:@"/" forState:UIControlStateNormal];

[button14 addTarget:self action:@selector(chu) forControlEvents:UIControlEventTouchUpInside];

[self.view addSubview:button14];

UIButton *button15=[UIButton buttonWithType:UIButtonTypeRoundedRect];

[button15 setFrame:CGRectMake(230, 110, 60, 60)];

[button15 setTitle:@"+" forState:UIControlStateNormal];

[button15 addTarget:self action:@selector(add) forControlEvents:UIControlEventTouchUpInside];

[self.view addSubview:button15];

UIButton *button16=[UIButton buttonWithType:UIButtonTypeRoundedRect];

[button16 setFrame:CGRectMake(230, 170, 60, 60)];

[button16 setTitle:@"-" forState:UIControlStateNormal];

[button16 addTarget:self action:@selector(jian) forControlEvents:UIControlEventTouchUpInside];

[self.view addSubview:button16];

}

-(void)one

{

str =@"1";

[str1 appendString:str];

atextField.text=str1;

a=[str1 doubleValue];

}

-(void)two

{

str =@"2";

[str1 appendString:str];

atextField.text=str1;

a=[str1 doubleValue];

}

-(void)three

{

str =@"3";

[str1 appendString:str];

atextField.text=str1;

a=[str1 doubleValue];

}

-(void)four

{

str =@"4";

[str1 appendString:str];

atextField.text=str1;

a=[str1 doubleValue];}

-(void)five

{

str =@"5";

[str1 appendString:str];

atextField.text=str1;

a=[str1 doubleValue];}

-(void)six

{

str =@"6";

[str1 appendString:str];

atextField.text=str1;

a=[str1 doubleValue];}

-(void)seven

{

str =@"7";

[str1 appendString:str];

atextField.text=str1;

a=[str1 doubleValue];}

-(void)eight

{

str =@"8";

[str1 appendString:str];

atextField.text=str1;

a=[str1 doubleValue];}

-(void)nine

{

str =@"9";

[str1 appendString:str];

atextField.text=str1;

a=[str1 doubleValue];}

-(void)add

{

str =@"+";

[str1 appendString:str];

atextField.text=str1;

b='1';c=a;

a=[str1 doubleValue];

[str1 release];

str1=[[NSMutableString alloc] init];}

-(void)jian

{

str =@"-";

[str1 appendString:str];

atextField.text=str1;

b='2';c=a;

a=[str1 doubleValue];

[str1 release];

str1=[[NSMutableString alloc] init];}

-(void)chen

{

str =@"*";

[str1 appendString:str];

atextField.text=str1;

b='3';c=a;

a=[str1 doubleValue];

[str1 release];

str1=[[NSMutableString alloc] init];}

-(void)chu

{

str =@"/";

[str1 appendString:str];

atextField.text=str1;

b='4';c=a;

a=[str1 doubleValue];

[str1 release];

str1=[[NSMutableString alloc] init];}

-(void)dian

{

str =@".";

[str1 appendString:str];

atextField.text=str1;

a=[str1 doubleValue];}

-(void)ac

{

str =@"0";

atextField.text=@"0";}

-(void)zero

{

str =@"0";

[str1 appendString:str];

atextField.text=str1;}

-(void)go

{if (b=='1') {br/p atextField.text=[NSString stringWithFormat:@"%f",(a+c)];}

if (b=='2') {

atextField.text=[NSString stringWithFormat:@"%f",(c-a)];}

if (b=='3') {

atextField.text=[NSString stringWithFormat:@"%f",(a*c)];}

if (b=='4') {

atextField.text=[NSString stringWithFormat:@"%f",(a/c)];}

if (b=='5') {

atextField.text=[NSString stringWithFormat:@"0"];}

[str1 release];

str1=[[NSMutableString alloc] init];}

- (void)didReceiveMemoryWarning

{

[super didReceiveMemoryWarning];

}

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation

{return (interfaceOrientation == UIInterfaceOrientationPortrait);}

@end

本人初學(xué)iOS開發(fā),跟著Stanford的公開課用Swift做一個(gè)計(jì)算器,出現(xiàn)Thread 1: signal SIGABRT錯(cuò)誤

在 XCode 里面,點(diǎn) Show the Breakpoint navigator 按鈕,在左下角有一個(gè)加號,點(diǎn)加號,然后點(diǎn) Add Exception Breakpoint 和 Add Swift Error Breakpoint。然后重新編譯執(zhí)行項(xiàng)目,貼報(bào)錯(cuò)上來。

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