.h
@property (retain,nonatomic)UILabel *label;
@property (retain,nonatomic)UIButton *button1,*button2,*button3,*button4,*button5,*button6;
@property (retain,nonatomic)NSMutableString *mutableString;
@property (assign,nonatomic)double num1,num2,num3;
@property (assign,nonatomic)int n,m;
@property (retain,nonatomic)NSString *fuhao,*point;
.m
- (void)shuzi:(id)sender{
// self.mutableString=[sender titleForState:UIControlStateNormal];将点击的button储存起来用NSString来接
// [self.mutableString appendString:i];将字符串加到可变字符串中
self.n++;
NSLog(@"n:%d",self.n);
if(self.n==0){
[self.mutableString setString:@""];//将取到的值清空
[self.mutableString appendString:[sender currentTitle]];
self.label.text=self.mutableString;
NSLog(@"%@",self.mutableString);
}
else{
[self.mutableString appendString:[sender currentTitle]];
self.point=[sender titleForState:UIControlStateNormal];
self.label.text=self.mutableString;
NSLog(@"%@",self.mutableString);
}
}
- (void)yunsuan:(id)sender{
self.m++;
NSLog(@"m:%d",self.m);
if(self.m==1){
self.num1=[self.label.text doubleValue];
//将第一次文本框的值转换成int型，并赋值给self.num1
[self.mutableString setString:@""];//将取到的值清空
self.fuhao=[sender titleForState:UIControlStateNormal];//接受到符号
// self.label.text=self.fuhao;//将符号赋值给文本框
}
else{
NSLog(@"num1:%f",self.num1);
self.num3=[self.label.text doubleValue];
NSLog(@"num3:%f",self.num3);
if([self.fuhao isEqualToString:@"+"])
{
self.label.text=[NSString stringWithFormat:@"%f",self.num1+self.num3];
self.num1=self.num1+self.num3;
[self.mutableString setString:@""];
self.fuhao=[sender titleForState:UIControlStateNormal];
}
else if([self.fuhao isEqualToString:@"-"])
{
// NSLog(@"进行的运算为“-”：");
self.label.text=[NSString stringWithFormat:@"%f",self.num1-self.num3];
self.num1=self.num1-self.num3;
[self.mutableString setString:@""];
self.fuhao=[sender titleForState:UIControlStateNormal];
}
else if([self.fuhao isEqualToString:@"×"])
{
// NSLog(@"进行的运算为“×”：");
self.label.text=[NSString stringWithFormat:@"%f",self.num1*self.num3];
self.num1=self.num1*self.num3;
[self.mutableString setString:@""];
self.fuhao=[sender titleForState:UIControlStateNormal];
}
else if([self.fuhao isEqualToString:@"÷"])
{
// NSLog(@"进行的运算为“÷”：");
self.label.text=[NSString stringWithFormat:@"%f",self.num1/self.num3];
self.num1=self.num1/self.num3;
[self.mutableString setString:@""];
self.fuhao=[sender titleForState:UIControlStateNormal];
}
}
}
- (void)tuihou:(id)sender{
[self.mutableString deleteCharactersInRange:NSMakeRange([self.mutableString length]-1,1)];
self.label.text=self.mutableString;
self.n--;
NSLog(@"n:%d",self.n);
}
- (void)equal:(id)sender{
self.num2=[self.label.text doubleValue];
NSLog(@"self.num1:%f",self.num1);
NSLog(@"self.num2:%f",self.num2);
self.label.text=[NSString stringWithFormat:@"%f",self.num2];
if([self.fuhao isEqualToString:@"+"])
{
// NSLog(@"进行的运算为“+”：");
self.label.text=[NSString stringWithFormat:@"%f",self.num1+self.num2];
NSLog(@"结果：%f",self.num1+self.num2);
self.n=-1;
self.m=0;
}
else if([self.fuhao isEqualToString:@"-"])
{
// NSLog(@"进行的运算为“-”：");
self.label.text=[NSString stringWithFormat:@"%f",self.num1-self.num2];
NSLog(@"结果：%f",self.num1-self.num2);
self.n=-1;
self.m=0;
}
else if([self.fuhao isEqualToString:@"×"])
{
// NSLog(@"进行的运算为“×”：");
self.label.text=[NSString stringWithFormat:@"%f",self.num1*self.num2];
NSLog(@"结果：%f",self.num1*self.num2);
self.n=-1;
self.m=0;
}
else if([self.fuhao isEqualToString:@"÷"])
{
// NSLog(@"进行的运算为“÷”：");
self.label.text=[NSString stringWithFormat:@"%f",self.num1/self.num2];
NSLog(@"结果：%f",self.num1/self.num2);
self.n=-1;
self.m=0;
}
}
- (void)qingchu:(id)sender{
self.n=0;
NSLog(@"n:%d",self.n);
self.m=0;
NSLog(@"m:%d",self.m);
[self.mutableString setString:@""];//将取到的值清空
NSLog(@"self.mutableString为:（“%@”）",self.mutableString);
self.num1=0;
self.num2=0;
self.label.text=@"0";//将第二次取到的值赋值给文本框
self.fuhao=@"";
NSLog(@"清除完毕！");
UIAlertController *alert=[UIAlertController alertControllerWithTitle:@"提示"message:@"清除完毕!"preferredStyle:UIAlertControllerStyleAlert];
[alert addAction:[UIAlertAction actionWithTitle:@"确定"style:UIAlertActionStyleDefault handler:nil]];
[self presentViewController:alert animated:true completion:nil];
}
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
self.mutableString=[[NSMutableString alloc]init];
self.label=[[UILabel alloc]initWithFrame:CGRectMake(45,60,320, 100)];
self.label.backgroundColor=[UIColor grayColor];
self.label.layer.masksToBounds = YES ;//给label的边框设置圆角
self.label.layer.cornerRadius = 20 ; // 设置圆角大小
self.label.text=@"0";
self.label.font=[UIFont systemFontOfSize:30];
self.label.textColor=[UIColor whiteColor];
[self.view addSubview:self.label];
for(int i=0;i<3;i++)
{
for(int j=0;j<4;j++)
{
if(j+i*4>9)
{
break;
}
else
{
self.button1=[[UIButton alloc]initWithFrame:CGRectMake(45+j*80,200+i*100,80, 50)];
// self.button1=[UIButton buttonWithType:UIButtonTypeRoundedRect];
self.button1.layer.masksToBounds =YES ;//给button1的边框设置圆角
self.button1.layer.cornerRadius =20 ;
[self.button1 setTitle:[NSString stringWithFormat:@"%d",j+i*4]forState:UIControlStateNormal];
self.button1.titleLabel.font=[UIFont systemFontOfSize:40];
[self.button1 setBackgroundColor:[UIColor blueColor]];
[self.button1 setTitleColor:[UIColor whiteColor]forState:UIControlStateHighlighted];
self.button1.showsTouchWhenHighlighted=YES;
[self.view addSubview:self.button1];
[self.button1 addTarget:self action:@selector(shuzi:)forControlEvents:UIControlEventTouchUpInside];
}
}
}
for(int i=0;i<4;i++){
self.button2=[[UIButton alloc]initWithFrame:CGRectMake(45+i*80,500,80, 50)];
// self.button2=[UIButton buttonWithType:UIButtonTypeRoundedRect];
self.button2.layer.masksToBounds = YES ;//给button2的边框设置圆角
self.button2.layer.cornerRadius = 20 ;
if(i==0)
{
[self.button2 setTitle:@"+"forState:UIControlStateNormal];
}
else if(i==1)
{
[self.button2 setTitle:@"-"forState:UIControlStateNormal];
}
else if(i==2)
{
[self.button2 setTitle:@"×"forState:UIControlStateNormal];
}
else if(i==3)
{
[self.button2 setTitle:@"÷"forState:UIControlStateNormal];
}
self.button2.titleLabel.font =[UIFont systemFontOfSize:40];
[self.button2 setBackgroundColor:[UIColor blueColor]];
[self.button2 setTitleColor:[UIColor whiteColor]forState:UIControlStateHighlighted];
self.button2.showsTouchWhenHighlighted=YES;
[self.view addSubview:self.button2];
[self.button2 addTarget:self action:@selector(yunsuan:)forControlEvents:UIControlEventTouchUpInside];
}
self.button3=[[UIButton alloc]initWithFrame:CGRectMake(205,400,80, 50)];
// self.button3=[UIButton buttonWithType:UIButtonTypeRoundedRect];
self.button3.layer.masksToBounds = YES ;//给button3的边框设置圆角
self.button3.layer.cornerRadius = 20 ;
[self.button3 setBackgroundColor:[UIColor blueColor]];
[self.button3 setTitle:@"."forState:UIControlStateNormal];
self.button3.titleLabel.font=[UIFont systemFontOfSize:40];
[self.button3 setTitleColor:[UIColor whiteColor]forState:UIControlStateHighlighted];
self.button3.showsTouchWhenHighlighted=YES;
[self.view addSubview:self.button3];
[self.button3 addTarget:self action:@selector(shuzi:)forControlEvents:UIControlEventTouchUpInside];
self.button4=[[UIButton alloc]initWithFrame:CGRectMake(285,400,80, 50)];
// self.button4=[UIButton buttonWithType:UIButtonTypeRoundedRect];
self.button4.layer.masksToBounds = YES ;//给button4的边框设置圆角
self.button4.layer.cornerRadius = 20 ;
[self.button4 setBackgroundColor:[UIColor blueColor]];
[self.button4 setTitle:@"="forState:UIControlStateNormal];
self.button4.titleLabel.font=[UIFont systemFontOfSize:40];
[self.button4 setTitleColor:[UIColor whiteColor]forState:UIControlStateHighlighted];
self.button4.showsTouchWhenHighlighted=YES;
[self.view addSubview:self.button4];
[self.button4 addTarget:self action:@selector(equal:)forControlEvents:UIControlEventTouchUpInside];
self.button5=[[UIButton alloc]initWithFrame:CGRectMake(45,600,160, 50)];
// self.button5=[UIButton buttonWithType:UIButtonTypeRoundedRect];
self.button5.layer.masksToBounds = YES ;//给button5的边框设置圆角
self.button5.layer.cornerRadius = 20 ;
[self.button5 setBackgroundColor:[UIColor blueColor]];
[self.button5 setTitle:@"退后"forState:UIControlStateNormal];
self.button5.titleLabel.font=[UIFont systemFontOfSize:40];
[self.button5 setTitleColor:[UIColor whiteColor]forState:UIControlStateHighlighted];
self.button5.showsTouchWhenHighlighted=YES;
[self.view addSubview:self.button5];
[self.button5 addTarget:self action:@selector(tuihou:)forControlEvents:UIControlEventTouchUpInside];
self.button6=[[UIButton alloc]initWithFrame:CGRectMake(205,600,160, 50)];
// self.button6=[UIButton buttonWithType:UIButtonTypeRoundedRect];
self.button6.layer.masksToBounds = YES ;//给button6的边框设置圆角
self.button6.layer.cornerRadius = 20 ;
[self.button6 setBackgroundColor:[UIColor blueColor]];
[self.button6 setTitle:@"清除"forState:UIControlStateNormal];
self.button6.titleLabel.font=[UIFont systemFontOfSize:40];
[self.button6 setTitleColor:[UIColor whiteColor]forState:UIControlStateHighlighted];
self.button6.showsTouchWhenHighlighted=YES;
[self.view addSubview:self.button6];
[self.button6 addTarget:self action:@selector(qingchu:)forControlEvents:UIControlEventTouchUpInside];
}