2022年ios计算器代码 .pdf

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1、#import interface ViewController : UIViewController IBOutlet UITextField *text; double first; NSString *buf; int flag; end #import ViewController.h interface ViewController () end implementation ViewController - (void)viewDidLoad super viewDidLoad; buf = NSString allocinit; - (void)didReceiveMemoryW

2、arning super didReceiveMemoryWarning; / Dispose of any resources that can be recreated. / + - (IBAction)btnadd:(id)sender first = buf doubleValue; buf = ; flag = 0; / - - (IBAction)sub:(id)sender first = buf doubleValue; buf = ; 名师资料总结 - - -精品资料欢迎下载 - - - - - - - - - - - - - - - - - - 名师精心整理 - - - -

3、 - - - 第 1 页，共 4 页 - - - - - - - - - flag = 1; / * - (IBAction)mul:(id)sender first = buf doubleValue; buf = ; flag = 2; / / - (IBAction)div:(id)sender first = buf doubleValue; buf = ; flag = 3; /= - (IBAction)btneq:(id)sender double secend = buf doubleValue; switch(flag) case 0: first = first + sec

4、end; text setText:buf; break; case 1: first = first - secend; text setText:buf; break; case 2: first = first * secend; text setText:buf; break; case 3: first = first / secend; text setText:buf; break; 名师资料总结 - - -精品资料欢迎下载 - - - - - - - - - - - - - - - - - - 名师精心整理 - - - - - - - 第 2 页，共 4 页 - - - - -

5、 - - - - buf =NSString stringWithFormat:%5.2f,first; text setText:buf; - (IBAction)btn0:(id)sender buf = buf stringByAppendingString:0 ; text setText:buf; - (IBAction)setbtn1:(id)sender buf = buf stringByAppendingString:1 ; text setText:buf; - (IBAction)setbtn2:(id)sender buf = buf stringByAppending

6、Format:2; text setText:buf; - (IBAction)btn3:(id)sender buf = buf stringByAppendingString:3 ; text setText:buf; - (IBAction)btn4:(id)sender buf = buf stringByAppendingString:4 ; text setText:buf; - (IBAction)btn5:(id)sender buf = buf stringByAppendingString:5 ; text setText:buf; - (IBAction)btn6:(id

7、)sender buf = buf stringByAppendingString:6 ; text setText:buf; - (IBAction)btn7:(id)sender buf = buf stringByAppendingString:7 ; text setText:buf; 名师资料总结 - - -精品资料欢迎下载 - - - - - - - - - - - - - - - - - - 名师精心整理 - - - - - - - 第 3 页，共 4 页 - - - - - - - - - - (IBAction)btn8:(id)sender buf = buf string

8、ByAppendingString:8 ; text setText:buf; - (IBAction)btn9:(id)sender buf = buf stringByAppendingString:9 ; text setText:buf; - (IBAction)btndoc:(id)sender buf = buf stringByAppendingString:. ; text setText:buf; - (IBAction)clear:(id)sender buf = ; text setText:buf; first = 0; end 名师资料总结 - - -精品资料欢迎下载 - - - - - - - - - - - - - - - - - - 名师精心整理 - - - - - - - 第 4 页，共 4 页 - - - - - - - - -