c++编程中if用法

c++编程中if用法

你的编程是语文老师教的吗？
去了解下if()
else if()
else()吧。一个完成就结束

# include "stdio.h"
void main()
{
char k0,i0;
printf("please input letter_");
scanf("%c",&k0);
printf("captial or lower-case__[C/L]\n\7\n");
scanf("%c",&i0);
if (i0='c',k0>='a'&&k0<='z')
{
k0=k0-32;
printf("result is \7\n %c",k0);
}
else
if (i0='c',k0>='A'&&k0<='Z')
printf("result is \7\n %c",k0);
else
if (i0='l',k0>='A'&&k0<='Z')
{
k0=k0+32;
printf("result is \7\n %c",k0);
}
else
if (i0='l',k0>='a'&&k0<='z')
printf("result is \7\n %c",k0);
else printf("input wrong");
}