jj042514.htm

一些计算机二级考试题

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     &nbsp;&nbsp;&nbsp;&nbsp;scanf(“%f”，&x)；<br><br>&nbsp;&nbsp;&nbsp;&nbsp;}<br><br>&nbsp;&nbsp;&nbsp;&nbsp;printf(“、namax=%f、namin=%f、n”，amax,amin)；<br><br>&nbsp;&nbsp;&nbsp;&nbsp;}<br><br>&nbsp;&nbsp;&nbsp;&nbsp;(10)下面程序通过函数average计算数组中各元素的平均值，请填空。<br><br>&nbsp;&nbsp;&nbsp;&nbsp;float average(int *pa,int n)<br><br>&nbsp;&nbsp;&nbsp;&nbsp;{int i;<br><br>&nbsp;&nbsp;&nbsp;&nbsp;float avg=0.0;<br><br>&nbsp;&nbsp;&nbsp;&nbsp;for(i=0;i<br><br>&nbsp;&nbsp;&nbsp;&nbsp;main()<br><br>&nbsp;&nbsp;&nbsp;&nbsp;{FILE *fp;<br><br>&nbsp;&nbsp;&nbsp;&nbsp;char ch,fname[10]；<br><br>&nbsp;&nbsp;&nbsp;&nbsp;printf(“lnput the name of file、n”)；<br><br>&nbsp;&nbsp;&nbsp;&nbsp;gets(fname)；<br><br>&nbsp;&nbsp;&nbsp;&nbsp;if((fp=16)==NULL)<br><br>&nbsp;&nbsp;&nbsp;&nbsp;─<br><br>&nbsp;&nbsp;&nbsp;&nbsp;{printf(“Cannot open、n”)；exit(0)；}<br><br>&nbsp;&nbsp;&nbsp;&nbsp;printf(“Enter data、n”)；<br><br>&nbsp;&nbsp;&nbsp;&nbsp;while((ch=getchar())！='#')<br><br>&nbsp;&nbsp;&nbsp;&nbsp;fputc(17,fp)；<br><br>&nbsp;&nbsp;&nbsp;&nbsp;fclose(fp)；<br><br>&nbsp;&nbsp;&nbsp;&nbsp;}<br><br>&nbsp;&nbsp;&nbsp;&nbsp;(15)以下函数creat用来建立一个带头结点的单向链表，新产生的结点总是插在链表的末尾。单向链表的头指针作为函数值返回。请填空：<br><br>&nbsp;&nbsp;&nbsp;&nbsp;#include<br><br>&nbsp;&nbsp;&nbsp;&nbsp;struct list<br><br>&nbsp;&nbsp;&nbsp;&nbsp;{char data;<br><br>&nbsp;&nbsp;&nbsp;&nbsp;struct list *next;<br><br>&nbsp;&nbsp;&nbsp;&nbsp;}；<br><br>&nbsp;&nbsp;&nbsp;&nbsp;struct list *creat()<br><br>&nbsp;&nbsp;&nbsp;&nbsp;{struct list *h,*p,*q;<br><br>&nbsp;&nbsp;&nbsp;&nbsp;char ch;<br><br>&nbsp;&nbsp;&nbsp;&nbsp;h=18 malioc(sizeof(struct list))；<br><br>&nbsp;&nbsp;&nbsp;&nbsp;─<br><br>&nbsp;&nbsp;&nbsp;&nbsp;p=q=h;<br><br>&nbsp;&nbsp;&nbsp;&nbsp;ch=getchar()；<br><br>&nbsp;&nbsp;&nbsp;&nbsp;while(ch！='？')<br><br>&nbsp;&nbsp;&nbsp;&nbsp;{p=19 malloc(sizeof(struct list))；<br><br>&nbsp;&nbsp;&nbsp;&nbsp;─<br><br>&nbsp;&nbsp;&nbsp;&nbsp;p——》data=ch;<br><br>&nbsp;&nbsp;&nbsp;&nbsp;p——》next=p;<br><br>&nbsp;&nbsp;&nbsp;&nbsp;q=p;<br><br>&nbsp;&nbsp;&nbsp;&nbsp;ch=getchar()；<br><br>&nbsp;&nbsp;&nbsp;&nbsp;}<br><br>&nbsp;&nbsp;&nbsp;&nbsp;p——》next='、0'；<br><br>&nbsp;&nbsp;&nbsp;&nbsp;20<br><br>&nbsp;&nbsp;&nbsp;&nbsp;─<br><br>&nbsp;&nbsp;&nbsp;&nbsp;}<br><br>&nbsp;&nbsp;&nbsp;&nbsp;1997年4月<br><br>&nbsp;&nbsp;&nbsp;&nbsp;全国计算机等级考试二级笔试试卷<br><br>&nbsp;&nbsp;&nbsp;&nbsp;一选择题((1)～(40)题每题1分，(41)～(50)题每题2分，共60分)<br><br>&nbsp;&nbsp;&nbsp;&nbsp;(1)B (2)B (3)C (4)A (5)C <br><br>&nbsp;&nbsp;&nbsp;&nbsp;(6)B (7)B (8)B (9)C (10)C<br><br>&nbsp;&nbsp;&nbsp;&nbsp;(11)D (12)D (13)C (14)D (15)B<br><br>&nbsp;&nbsp;&nbsp;&nbsp;(16)D (17)C (18)A (19)C (20)D<br><br>&nbsp;&nbsp;&nbsp;&nbsp;(21)B (22)A (23)A (24)C (25)D<br><br>&nbsp;&nbsp;&nbsp;&nbsp;(26)D (27)C (28)D (29)D (30)C<br><br>&nbsp;&nbsp;&nbsp;&nbsp;(31)C (32)B (33)C (34)B (35)A<br><br>&nbsp;&nbsp;&nbsp;&nbsp;(36)D (37)D (38)D (39)D (40)B<br><br>&nbsp;&nbsp;&nbsp;&nbsp;(41)D (42)C (43)D (44)B (45)B<br><br>&nbsp;&nbsp;&nbsp;&nbsp;(46)C (47)A (48)A (49)C (50)D<br><br>      </font>
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     &nbsp;&nbsp;&nbsp;&nbsp;二填空题(每空2分，共40分)<br><br>&nbsp;&nbsp;&nbsp;&nbsp;((1)至(5)题中所有字母都允许大`小写或大小写混合)<br><br>&nbsp;&nbsp;&nbsp;&nbsp;(1)1 70.6<br><br>&nbsp;&nbsp;&nbsp;&nbsp;─<br><br>&nbsp;&nbsp;&nbsp;&nbsp;(2)2 25(答25KB不扣分)<br><br>&nbsp;&nbsp;&nbsp;&nbsp;─<br><br>&nbsp;&nbsp;&nbsp;&nbsp;(3)3 57<br><br>&nbsp;&nbsp;&nbsp;&nbsp;─<br><br>&nbsp;&nbsp;&nbsp;&nbsp;(4)4 外部(答外部命令不扣分)<br><br>&nbsp;&nbsp;&nbsp;&nbsp;─<br><br>&nbsp;&nbsp;&nbsp;&nbsp;(5)5 AUTOEXEC.BAT(答AUTOEXEC扣1分)<br><br>&nbsp;&nbsp;&nbsp;&nbsp;─<br><br>&nbsp;&nbsp;&nbsp;&nbsp;(6)6 (x》10 &&x《100)││x《0 或(1010 &&x《100)或0》x││(10《&&x《100)<br><br>&nbsp;&nbsp;&nbsp;&nbsp;(并且括号有无都可以)<br><br>&nbsp;&nbsp;&nbsp;&nbsp;(7)7 GFEDCB<br><br>&nbsp;&nbsp;&nbsp;&nbsp;─<br><br>&nbsp;&nbsp;&nbsp;&nbsp;(8)8 7 1<br><br>&nbsp;&nbsp;&nbsp;&nbsp;─<br><br>&nbsp;&nbsp;&nbsp;&nbsp;(9)x》=0.0 或！(x《0)或！(x《0.0)<br><br>&nbsp;&nbsp;&nbsp;&nbsp;或0.0《=x 或！(0.0》x)或！(0》x)<br><br>&nbsp;&nbsp;&nbsp;&nbsp;(10)10 xx 或amin》=x<br><br>&nbsp;&nbsp;&nbsp;&nbsp;─<br><br>&nbsp;&nbsp;&nbsp;&nbsp;11 *(pai)或pa[i]<br><br>&nbsp;&nbsp;&nbsp;&nbsp;─<br><br>&nbsp;&nbsp;&nbsp;&nbsp;12 avg/n 或avg/(float)n 或avg/(double)n<br><br>&nbsp;&nbsp;&nbsp;&nbsp;─<br><br>&nbsp;&nbsp;&nbsp;&nbsp;(11)13 10<br><br>&nbsp;&nbsp;&nbsp;&nbsp;─<br><br>&nbsp;&nbsp;&nbsp;&nbsp;(12)14 8<br><br>&nbsp;&nbsp;&nbsp;&nbsp;─<br><br>&nbsp;&nbsp;&nbsp;&nbsp;(13)15 HOW how do you do (说明：HOW 和how之间有无空格均可)<br><br>&nbsp;&nbsp;&nbsp;&nbsp;─<br><br>&nbsp;&nbsp;&nbsp;&nbsp;(14)16 fopen(fname,“w”)说明：“w”开头的字符串均可)<br><br>&nbsp;&nbsp;&nbsp;&nbsp;─<br><br>&nbsp;&nbsp;&nbsp;&nbsp;17 ch<br><br>&nbsp;&nbsp;&nbsp;&nbsp;─<br><br>&nbsp;&nbsp;&nbsp;&nbsp;(15)18 (struct list *)<br><br>&nbsp;&nbsp;&nbsp;&nbsp;─<br><br>&nbsp;&nbsp;&nbsp;&nbsp;19 (struct list *)<br><br>&nbsp;&nbsp;&nbsp;&nbsp;─<br><br>&nbsp;&nbsp;&nbsp;&nbsp;20 return(h)；或return h;<br><br>&nbsp;&nbsp;&nbsp;&nbsp;─<br><br>
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