Problem Description
请定义具有red, orange, yellow, green, blue, violet六种颜色的枚举类型color，根据输入的颜色名称，输出以下六种植物花朵的颜色：
Rose(red), Poppies(orange), Sunflower(yellow), Grass(green), Bluebells(blue), Violets(violet)。如果输入的颜色名称不在枚举类型color中，例如输入purple，请输出I don't know about the color purple.
Input
输入数据有多行，每行有一个字符串代表颜色名称，颜色名称最多30个字符，直到文件结束为止。
Output
输出对应颜色的植物名称，例如：Bluebells are blue. 如果输入的颜色名称不在枚举类型color中，例如purple, 请输出I don't know about the color purple.
Example Input
blue
yellow
purple
Example Output
Bluebells are blue.
Sunflower are yellow.
I don't know about the color purple.
Hint
请用枚举类型实现。
解题过程如下：
#include<stdio.h>
#include<string.h>
int main()
{
char a[40];
while (~scanf("%s",&a))
{
if (strcmp("blue",a)==0)
{
printf("Bluebells are blue.\n");
}
else if (strcmp("red",a)==0)
{
printf("Rose are red.\n");
}
else if (strcmp("orange",a)==0)
{
printf("Poppies are orange.\n");
}
else if (strcmp("yellow",a)==0)
{
printf("Sunflower are yellow.\n");
}
else if (strcmp("green",a)==0)
{
printf("Grass are green.\n");
}
else if (strcmp("violet",a)==0)
{
printf("Violets are violet.\n");
}
else
printf("I don't know about the color %s.\n",a);
}
return 0;
}
注：注意当没有相关颜色时，输出的字符要与输入的字符一致
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