谁能帮我一下啊,这段程序怎么不行啊?谢谢了.

2025-03-02 01:33:21
推荐回答(4个)
回答1:

printf("please input the second word:\n");
{scanf("%c",&m);
{

这里将第二行的 { 移动到第一行前面,删除第三行的{
****************************************

}

else printf("Error");
这里删除第一行的}

语法错误就这些。

语法错误及其它修正后的程序如下:

///////////////////////////////////
#include
#include
void main()
{ char c,d,m;
printf("please input the first word:\n");
scanf("%c",&c);
if(c=='M')
printf("Monday");
else if(c=='T')
{printf("please input the second word:\n");
scanf("%c",&d);
if(d=='u')
printf("Tuesday");
else if(d=='h')
printf("Thursday");
else printf("Error");
}
else if( c=='W')
printf("Wednesday");
else if(c=='F')

printf("Friday");
else if(c=='S')
{printf("please input the second word:\n");

fflush(stdin);

scanf("%c",&m);

if(m=='a')
printf("Saturday");
else if(m=='u')
printf("Sunday");
else printf("Error");
}

else printf("Error");
getch();
}

回答2:

#include
void main()
{ char c,d,m;
printf("please input the first word:\n");
scanf("%c",&c);
if(c=='M')
printf("Monday");
else if(c=='T')
{printf("please input the second word:\n");
scanf("%c",&d);
if(d=='u')
printf("Tuesday");
else if(d=='h')
printf("Thursday");
else printf("Error");
}
else if( c=='W')
printf("Wednesday");
else if(c=='F')

printf("Friday");
/*从这里开始大括号的位置有问题,导致if和else不匹配
else if(c=='S')
printf("please input the second word:\n");
{scanf("%c",&m);
{
if(m=='a')
printf("Saturday");
else if(m=='u')
printf("Sunday");
else printf("Error");
}

}

else printf("Error");
getch(); stdio.h里没有声明getch()函数)*/
/*以上注释部分改为如下:*/
else if(c=='S'){
printf("please input the second word:\n");
scanf("%c",&m);
if(m=='a')
printf("Saturday");
else if(m=='u')
printf("Sunday");
else printf("Error");
}
else printf("Error");
getchar();
}
/*以上在VC++6.0编译通过*/

回答3:

if...else结构过于混乱。
帮你把代码修改一下:
#include
void main()
{
char c,d,m;
printf ("Please input the first character\n");
scanf ("%c", &c);

if ( c == 'M')
printf ("Monday\n");
else if ( c == 'T')
{
printf ("Please input the second character\n");
scanf ("%c", &d);
if ( d == 'h')
printf ("Thursday\n");
else if ( d == 'u')
printf ("Tusday");
else
printf ("Error");
}
else if ( c == 'W')
printf ("Wednesday\n");
else if ( c == 'F')
printf ("Friday\n");
else if ( c == 'S'){
printf ("Please input the second character\n");
scanf ("%c", &m);
if ( m == 'a')
printf ("Saturday\n");
else if ( m == 'u')
printf ("Sunday\n");
else
printf ("Error");
}
else
printf ("Error\n");

}

说实在的,用if...else if来写确实显得不好。
建议使用switch语句:

#include
#include

void main()
{
char c,d,m;
printf ("Please input the first character\n");
scanf ("%c", &c);

switch (toupper(c)){
case 'M':
printf ("Monday\n");
break;

case 'T':

printf ("Please input the second character\n");
scanf ("%c", &d);

switch (tolower(d)){

case 'u':
printf ("Tusday\n");
break;
case 'h':
printf ("Thursday\n");
break;
default:
printf ("Error");
}
break;

case 'W':
printf ("Wednesday\n");
break;

case 'F':
printf ("Friday\n");
break;

case 'S':
printf ("Please input the second character\n");
scanf ("%c", &m);

switch (tolower(m)){

case 'u':
printf ("Sunday\n");
break;
case 'a':
printf ("Saturday\n");
break;
default:
printf ("Error");
}
break;

default:
printf ("Error\n");
}

getch();

}

不过因为VC++的bug,上述代码的case:下的scanf()不会被执行,建议在Turbo C下调试

回答4:

用二维数组 加 while 语句 这样简便!1
#include
void main()
{
char n,date[8][10]={"Monday","Tuesday","Thursday","Wednesday","Friday","Saturday","Sunday"};

while(1)
{
printf("please input date:\n");
scanf("%d",&n);
if(n<=0 || n>=8)
{
printf("Error!!! \n please input date:");
continue;
}
else
printf("%s\n",date[n-1]);
break;
}
}

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