int main (int argc, const char * argv[])
{
NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
int n, number, triangularNumber;
NSLog(@"What Triangular Number Do You Want?");
scanf(@"%i", &number);
triangularNumber = 0;
for (n = 1; n <= number; ++n)
triangularNumber += n;
NSLog(@"Triangular Number %i is %i", number, triangularNumber);
[pool drain];
return 0;
}
写一个整数时的输出是:
Triangular Number 0 is 0
答案 0 :(得分:2)
您的输入数字为0,并且for循环中的条件从1开始。因此,循环永远不会执行。
答案 1 :(得分:0)
应该是:
for (n = 1; n <= number; ++n) {
triangularNumber += n;
NSLog(@"Triangular Number %i is %i", number, triangularNumber);
}
在编写它的方式中,它被解析为:
for (n = 1; n <= number; ++n) {
triangularNumber += n;
}
NSLog(@"Triangular Number %i is %i", number, triangularNumber);
由于输入(数字)为0(如打印所示),循环不会发生,但是打印了该行。