1         int  value1,value2;2         printf("请输入两个整数,用逗号隔开：");3         scanf("%d,%d",&value1,&value2);4         5         if (value1 % value2 == 0) {6             printf("可以整除\n");7         }8         printf("不能整除\n");9         

 1         double   value1, value2; 2         char      operator; 3         Calculator *deskCalc = [[Calculator alloc] init]; 4          5         NSLog(@"Type in your expression."); 6         scanf("%lf  %c  %lf", &value1, &operator, &value2); 7          8         [deskCalc setAccumulator:value1]; 9         10         if ( operator == ‘+‘ ) {11             [deskCalc add: value2];12         }else if ( operator == ‘-‘)13             [deskCalc subtract: value2];14         else if ( operator == ‘*‘ )15             [deskCalc multiply: value2];16         else if ( operator == ‘/‘)17             if ( value2 == 0) {18                 NSLog(@"Division by zero.");19 //                NSLog(@"%.2f",[deskCalc accumulator]);20             }else21                 [deskCalc divide: value2];22         else23             NSLog(@"Unknown operator.");24         NSLog(@"%.2f",[deskCalc accumulator]);

- (void) print{    if (numerator % denominator == 0 && denominator != 0) {        NSLog(@"%d",numerator/denominator);    }else if (numerator == 0 )        NSLog(@"分数为 0 ");    else        NSLog(@"%d/%d", numerator,denominator);}

        double   number;        char      operator;        Calculator *deskCalc = [[Calculator alloc] init];                NSLog(@"Type in your expression.");//        scanf("%lf  ", &number);        while ( operator != ‘E‘ ) {            scanf("%lf %c",&number,&operator);            if ( operator == ‘S‘) {                [deskCalc setAccumulator:number];                NSLog(@"%lf",[deskCalc accumulator]);                            }else if ( operator == ‘+‘ ){                [deskCalc add:number];                NSLog(@"加法 %lf",[deskCalc accumulator]);            }else if ( operator == ‘-‘ ){                [deskCalc subtract:number];                NSLog(@"减法%lf",[deskCalc accumulator]);            }else if ( operator == ‘*‘ ){                [deskCalc multiply:number];                NSLog(@"乘法%lf",[deskCalc accumulator]);            }else if ( operator == ‘/‘ ){                if (number != 0) {                    [deskCalc divide:number];                    NSLog(@"除法%lf",[deskCalc accumulator]);                }else                    NSLog(@"除数为0 不合法");            }else                NSLog(@"您输入的符号不合法");    }

        int number, right_digit;        BOOL isTure = ‘\0‘;                NSLog(@"Enter your number.");        scanf("%d", &number);                if ( number < 0 ) {            number = -number;            isTure = YES;        }        do {            right_digit = number % 10;            NSLog(@"%d", right_digit);            number /= 10;        } while ( number != 0 );        if ( isTure ) {            NSLog(@"-");                    }

 1         int number, right_digit, reverseNum = 0; 2         NSLog(@"请输入一个整数"); 3         scanf("%d", &number); 4          5         do { 6             right_digit = number % 10; 7             reverseNum *= 10; 8             reverseNum += right_digit; 9 //            NSLog(@"%d", reverseNum);10             number /= 10;11         } while (number != 0);12         13         do {14             right_digit = reverseNum % 10;15             switch (right_digit) {16                 case 0:17                     NSLog(@"zero");18                     break;19                 case 1:20                     NSLog(@"one");21                     break;22                 case 2:23                     NSLog(@"two");24                     break;25                 case 3:26                     NSLog(@"three");27                     break;28                 case 4:29                     NSLog(@"four");30                     break;31                 case 5:32                     NSLog(@"five");33                     break;34                 case 6:35                     NSLog(@"six");36                     break;37                 case 7:38                     NSLog(@"seven");39                     break;40                 case 8:41                     NSLog(@"eight");42                     break;43                 case 9:44                     NSLog(@"nine");45                     break;46                 default:47                     break;48             }49             reverseNum /= 10;50         } while (reverseNum != 0);51         52         

 1          int p, d, isPrime; 2          3         for ( p = 2; p <= 50; ++p ){ 4             if ( p % 2 == 0 ){ 5                 isPrime = 0; 6             } 7             isPrime = 1; 8              9             for ( d = 2; d < p; ++d ){10                 if ( p % d == 0 )11                     isPrime = 0;12             }13             14             if ( isPrime != 0 )15                 NSLog (@"%i", p);16         }17