The first example from this week was a count down. This would display on screen a count down from 10 to 0.
import sys
#This will give us some control over the time
import time
# We want the text around the center
xCenter = 400
yCenter = 300
# Set up my font, with a size of 100 pixels
print "font arial 100 BOLD"
# My looping conditions
start = 10
end = -1
inc = -1
#Wait a second
time.sleep(1)
#For each number we want to
for i in range(start,end,inc):
#Wait one second
time.sleep(1)
print "color 0 0 0"
#Clear the screen
print "clear"
print "color 255 255 255"
#Then write the number
print "text",i, xCenter, yCenter
sys.stdout.flush()The important thing from this example was
#Our looping Conditions
start = #what value do we want to start with#
end = #at what value do we want to stop#
inc = #how do we want our values to change from one to the next#
for i in range(start,end,inc):
#Do something`
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#In many ways, this behaves like the intersection example from last week. If our start were 10, and our end were 0, and our inc was -1, we would go down one number each time from 10 to 1 (remember, we won’t do anything with 0, cause we stop)
The second example this week was a mathematical table. In this example we will have the numbers from 0 to 15 as a header row, and column. We will then will in the position at the row and column with the multiplication of the row and column header.
#Where do I want my table to start
xStart = 100
yStart = 100
#How much space do I want between numbers
spacing = 30
#How do I want my font set up
print "font arial 10 BOLD"
#Loop variables
start = 0
end = 16
#Draw lines to separate the numbers we want to multiply from the answers
print "line",xStart - spacing / 2,yStart - spacing,xStart - spacing/2,yStart + spacing * end
print "line",xStart - spacing,yStart - spacing/2,xStart + spacing * end,yStart - spacing / 2
#Write the numbers on the top and side
for i in range(start,end):
print "text",i,xStart + i*spacing, yStart - spacing
print "text",i,xStart - spacing, yStart + i*spacing
#Fill in the columns and rows. In this example, with the number at the top multiplied by the number on the side
for i in range(start,end):
for j in range(start,end):
# Multiply I and J, and put the answer at x column i and y row j
print "text",i*j, xStart + i*spacing, yStart + j*spacingIn this example we use a nested for loop
#loop conditions
start = #where to begin#
end = #where to end#
inc = #how to change from one to the next#
for i in range(start,end):
for j in range(start,end):
#Do something with a combination of i and j`
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