Web有以下程序段int k=0while(k)k++;则while循环体执行的次数是 A. 无限次 B. 有语法错,不能执行 C. 一次也不执行 D. 执行1次 WebDec 31, 2024 · If fgets() encounters a newline character in stdin, it will write it to the end of str before the null terminator, and because you're using a post-increment operator in the condition expression of your while loop, you are also including the null terminator in your total count. This accounts for the difference of 2 from your expected value n.
while(n++)是什么意思-掘金 - 稀土掘金
WebFeb 19, 2024 · 优化这段代码a = input().split() n = int(a[0]) # 计算最长一行的字符个数 n = n - 1 line = 3 sum1 = 1 while n > 2 * line: n = n - line * 2 sum1 = sum1 + line * 2 line = line + … WebAug 6, 2007 · n++先返回后自增。 循环第一次n=0,自增到1 第二次n=1,自增到2; 第三次n=2,自增到3; 第四次n=3>2,如果有循环体的话不会执行,但是自增是写在循环判断条件里面的,所以n仍然加一。 循环结束,n=4。 pitch plural
Iteration statements -for, foreach, do, and while Microsoft Learn
WebSep 16, 2024 · 以下内容是CSDN社区关于请教一下while循环和n++的问题 int n=0; while(n++ <3) printf(“n is %d\n”,n); printf(“n is %d”,n); 输出 n is 1 n is 2 n is 3 n is 4 最 … WebJul 5, 2011 · (2) n++的值为1(这时候n已经变成了2) (3)n++的值为2(这时候n已经变成了3) (4)n++的值为3(这时候不进行循环了(因为n++已经大于2了)但是n又加上了1所以n的值为4)最后结果为4 程序结束!关键你要搞清n++的含义!一旦系统算出n++他马上就会令n加上1;这一点 ... WebJun 23, 2011 · The thing here to note is when using while loops. For example: n = 5 while(n--) #Runs the loop 5 times while(--n) #Runs the loop 4 times As in n-- the loop runs extra time while n = 1 But in --n 1 is first decremented to 0, and then evaluated. This causes the while loop to break. pitch poling