'''Question: enter a day of a certain year to determine the day of the year? 1. program Analysis: Taking June 1, March 5 as an example, we should add up the previous two months, and then add 5 days, that is, the day of the current year. In special cases, an additional day is required when the input month is greater than 3 in a leap year. 2. source code: ''' year = int (raw_input ('year: \ n') month = int (raw_input ('month: \ n ')) day = int (raw_input ('day: \ n') months = (120,151,181,212,243,273,304,334,) if 0 <= month <= 12: sum = months [month-1] else: print 'data error' sum + = dayleap = 0if (year % 400 = 0) or (year % 4 = 0) and (year % 100! = 0): leap = 1if (leap = 1) and (month> 2): sum + = 1 print 'it is the % dth day. '% sum
''' [Program 5] Question: Enter three integers x, y, and z. Please output these three numbers from small to large. 1. program Analysis: we try to put the smallest number on x and compare x with y first. If x> y, the values of x and y are exchanged, then compare x with z. If x> z, the value of x is exchanged with z to minimize x. 2. program source code: ''' l = [] for I in range (3): x = int (raw_input ('integer: \ n') l. append (x) l. sort () print l
''' [Program 6] Question: Use * to output the C Letter. 1. Program Analysis: You can use the '*' sign to write the letter C on the paper, and then output it by branch. 2. program source code: '''print 'Hello Python world! \ N 'print '* 10for I in range (5): print' ** 'print '* 10 print' * \ n' * 6
''' [Program 7] Question: Output special pattern. Please run it in the c environment. Have a look, Very Beautiful! 1. Program Analysis: There are 256 characters in total. Different Characters and images are different. 2. program source code: '''a = 176b = 219 print chr (B), chr (a), chr (a), chr (B) print chr (a), chr (B), chr (a), chr (B), chr (a) print chr (a), chr (), chr (B), chr (a), chr (a) print chr (a), chr (B), chr (a), chr (B), chr () print chr (B), chr (a), chr (B)
'''Program 8: Output 9*9 tips. 1. Program Analysis: For branch and column consideration, there are 9 rows and 9 columns, I control row and j control column. 2. program source code: # include "stdio. h "main () {int I, j, result; printf (" \ n "); for (I = 1; I <10; I ++) {for (j = 1; j <10; j ++) {result = I * j; printf ("% d * % d = %-3d", I, j, result);/*-3d indicates the left alignment, which occupies 3 places */} printf ("\ n "); /* line feed after each line */} ''' for I in range (): for j in range ): result = I * j print '% d * % d = %-3d' % (I, j, result) print''
''' [Program 9] Question: It is required to output the chess board. 1. Program Analysis: Use I control rows and j to control columns, and control the output black square or white square according to the sum of I + j. 2. program source code: # include "stdio. h "main () {int I, j; for (I = 0; I <8; I ++) {for (j = 0; j <8; j ++) if (I + j) % 2 = 0) printf ("% c", 219,219); else printf (""); printf ("\ n") ;}}''' import sysfor I in range (8): for j in range (8): if (I + j) % 2 = 0: sys. stdout. write (chr (219) sys. stdout. write (chr (219) else: sys. stdout. write ('') print''
'''Program 10: print the stairs and print two smiling faces above the stairs. 1. Program Analysis: Use I to control rows and j to control columns. j controls the number of black squares output based on I changes. 2. program source code: ''' import syssys. stdout. write (chr (1) sys. stdout. write (chr (1) print ''for I in range (1, 11): for j in range (1, I): sys. stdout. write (chr (219) sys. stdout. write (chr (219) print''