Python 练习实例4（Python 100例）
题目：输入某年某月某日，判断这一天是这一年的第几天？
程序分析：以3月5日为例，应该先把前两个月的加起来，然后再加上5天即本年的第几天，特殊情况，闰年且输入月份大于2时需考虑多加一天：
程序代码：
i = int(raw_input('yuar:'))
j = int(raw_input('month:'))
k = int(raw_input('day:'))
arr = [31,28,31,30,31,30,31,31,30,31,30,31]
r = 0
for idx in range(0,13):
if j-1>idx:
r+=(arr[idx])
if (j>2)and((i%4==0)and(i%100!=0)or(i%400==0)):
r=r+1
print r+k
Python 练习实例5（Python 100例）
题目：输入三个整数x,y,z，请把这三个数由小到大输出。
程序分析：我们想办法把最小的数放到x上，先将x与y进行比较，如果x>y则将x与y的值进行交换，然后再用x与z进行比较，如果x>z则将x与z的值进行交换，这样能使x最小。
程序代码：
方法一：
x=int(raw_input('x:'))
y=int(raw_input('y:'))
z=int(raw_input('z:'))
if y>x:
min=x
max=y
elif y<x:
min=y
y=x
y=min
if z>y:
print (x,y,z)
elif z<x:
print (z,x,y)
else:
print (x,z,y)
方法二：
l = []
for i in range(3):
x = int(raw_input('integer:\n'))
l.append(x)
l.sort()
print l
【程序32】题目：Press any key to change color, do you want to try it. Please hurry up! （c语言经典编程实例100题）
程序代码：
方法一：
#include <conio.h>
#include <stdio.h>
#include <windows.h>
int textbackground(short iColor)
{
HANDLE hd = GetStdHandle(STD_OUTPUT_HANDLE);
CONSOLE_SCREEN_BUFFER_INFO csbInfo;
GetConsoleScreenBufferInfo(hd, &csbInfo);
return SetConsoleTextAttribute(hd, (iColor<<4)|(csbInfo.wAttributes&~0xF0));
}
void main(void)
{
int color;
for(color=0;color<16;color++)
{
textbackground(color);//设置文本的背景颜色
cprintf("this is color%d\r\n",color);
cprintf("press any key to continue\r\n");
getch();//输入的字符看不见
}
}
方法二：
#include<stdio.h>
#include<stdlib.h>
#include<conio.h>
#include <iostream>
int main()
{
printf("This is color %d\r\n", 0);
printf("Press any key to continue\r\n");
system("color 1f");
system ("pause");
system("cls");
getch();
printf("This is color %d\r\n", 1);
printf("Press any key to continue\r\n");
system("color 2f");
system ("pause");
system("cls");
getch();
printf("This is color %d\r\n", 2);
printf("Press any key to continue\r\n");
system("color 3f");
system ("pause");
system("cls");
getch();
printf("This is color %d\r\n", 3);
printf("Press any key to continue\r\n");
system("color 4f");
system ("pause");
system("cls");
getch();
printf("This is color %d\r\n", 4);
printf("Press any key to continue\r\n");
system("color 5f");
system ("pause");
system("cls");
getch();
printf("This is color %d\r\n", 5);
printf("Press any key to continue\r\n");
system("color 6f");
system ("pause");
system("cls");
getch();
printf("This is color %d\r\n", 6);
printf("Press any key to continue\r\n");
system("color 7f");
system ("pause");
system("cls");
getch();
printf("This is color %d\r\n", 7);
printf("Press any key to continue\r\n");
system("color 8f");
system ("pause");
system("cls");
getch();
printf("This is color %d\r\n", 8);
printf("Press any key to continue\r\n");
system("color 9f");
system ("pause");
system("cls");
return 0;
}
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