For循环测试

For循环测试

9th - 12th Grade

7 Qs

quiz-placeholder

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For循环测试

For循环测试

Assessment

Quiz

Computers

9th - 12th Grade

Practice Problem

Hard

Created by

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7 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

for语句的一般形式如下,若表达式2的值为“假”,则结束循环。

for (表达式1; 表达式2; 表达式3) 
    循环体语句 

T

F

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

for语句的一般形式如下,若表达式2的值为“真”,则先执行循环体语句,再计算表达式3,然后继续循环。

for (表达式1; 表达式2; 表达式3) 
   循环体语句  

T

F

3.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

执行语句for(i=1;i<4;i++ );后变量i的值是( )。

3

5

4

不定

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

语句for(i=1,j=10;i<j;++i, j--);执行之后i,j的值均为5。

T

F

5.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

下列程序段的输出结果是()。

#include<stdio.h>
int main()
{
      for(int i = 1; i < 7; i ++) {
            if( i % 3 != 0) {
                  printf("#");
                  continue;
            }
            printf("*");
      }
      return 0;
}


#*#*#*

######


******

##*##*

6.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

下列程序段的输出结果是()。

int main(void) 
{
      for(int i = 1; i < 6; i ++) {
            if( i % 2 != 0) { 
                  printf("#");
                  continue;  
            }
      printf("*");     
      }
      printf("\n");    
     
      return 0;
}


#*#*#

#####

*****


*#*#*

7.

OPEN ENDED QUESTION

5 mins • 1 pt

求10以内的偶数的和

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