📄 经典c程序100例==31--40.htm
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color=#3300cc>经典c程序100例==31--40</FONT></FONT></B></FONT></P>
<P><FONT
color=#990000>【程序31】</FONT><BR>题目：请输入星期几的第一个字母来判断一下是星期几，如果第一个字母一样，则继续<BR> 判断第二个字母。<BR>1.程序分析：用情况语句比较好，如果第一个字母一样，则判断用情况语句或if语句判断第二个字母。<BR>2.程序源代码：<BR>#include
<stdio.h><BR>void main()<BR>{<BR>char
letter;<BR>printf("please input the first letter
of someday\n");<BR>while
((letter=getch())!='Y')/*当所按字母为Y时才结束*/<BR>{ switch
(letter)<BR>{case 'S':printf("please input second
letter\n");<BR> if((letter=getch())=='a')<BR> printf("saturday\n");<BR> else
if
((letter=getch())=='u')<BR> printf("sunday\n");<BR> else
printf("data error\n");<BR> break;<BR>case
'F':printf("friday\n");break;<BR>case
'M':printf("monday\n");break;<BR>case
'T':printf("please input second
letter\n");<BR> if((letter=getch())=='u')<BR> printf("tuesday\n");<BR> else
if
((letter=getch())=='h')<BR> printf("thursday\n");<BR> else
printf("data error\n");<BR> break;<BR>case
'W':printf("wednesday\n");break;<BR>default:
printf("data
error\n");<BR> }<BR> }<BR>}<BR>==============================================================<BR><FONT
color=#990000>【程序32】</FONT><BR>题目：Press any key to
change color, do you want to try it. Please hurry
up!<BR>1.程序分析： <BR>2.程序源代码：<BR>#include
<conio.h><BR>void main(void)<BR>{<BR>int
color;<BR>for (color = 0; color < 8;
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