阅读以下Shell程序，它的输出是_____________ #!/bin/sh echo "ok,nice" loop=0 for str in "hello world" do loop=$(($loop+1)) echo "The $loop loop:$str" done A: ok,nice The 2 loop:hello world B: ok,nice The 1 loop:hello world C: The 1 loop:hello world D: ok,nice

以下程序段中的loop是一个语句标号 if(score!=-1) { sum=sum+score; i++; goto loop; }

下列循环体能正常结束的是（ ）。 A: i = 5Do i = i + 1Loop Until i < 0 B: i = 1Do i = i + 2Loop Until i = 10 C: i = 10Do i = i + 1Loop Until i > 0 D: i = 6Do i = i - 2Loop Until i = 1

下列循环能正常结束循环的是( )。 A: i=5 Do i=i+1 Loop Until i<0 B: i=1 Do i=i+2 Loop Until i=10 C: i=10 Do i=i+1 Loop Until I>0 D: i=6 Do i=i-2 Loop Until I=1

下列循环语句中,循环次数最少的是______。 A: a = 5: B: = 7 Do While a &lt; b a = a + 1 LoopB. a = 5: b = 7 Do Until a &lt; b a = a + 1 Loop C: a = 5: b = 7 Do a = a + 1 Loop While a &lt; b D: a = 5: b = 7 Do a = a + 1 Loop Until a &lt; b

用LOOP编程实现1到100的和

执行下列程序段后，x的值是（）。n = 5: x = 1: i = 1Do x = x * i i = i + 1Loop While i < n

下列循环语句中在任何情况下都至少执行一次循环体的是______。 A: Do While &lt;条件&gt; 循环体Loop B: For i = 10 to 1 step 1 循环体Next C: Do 循环体Loop Until &lt;条件&gt; D: Do Until &lt;条件&gt; 循环体Loop

下列循环能正常结束循环的是(). A: i=5<br>Do<br>i=i+1<br>Loop Until i<0 B: i=1<br>Do<br>i=i+2<br>Loop Until i=10 C: i=10<br>Do<br>i=i+1<br>Loop Until I>0 D: i=6<br>Do<br>i=i-2<br>Loop Until I=1

____________ congestion control to prevent the congestion. A: close loop B: open loop C: end loop