2. Printing from 1 to 3

2.1. Simple way

1 print(1) 2 print(2) 3 print(3) Edit this code line that just executed next line to execute << First < Prev Next > Last >> Step 1 of 3 Submit Python Tutor by Philip Guo Customize visualization (NEW!)

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Activity: CodeLens 2.1.1 (cl_l15_2a_en)

2.2. Using a variable

1 x = 1 2 print(x) 3 x = 2 4 print(x) 5 x = 3 6 print(x) Edit this code line that just executed next line to execute << First < Prev Next > Last >> Step 1 of 6 Submit Python Tutor by Philip Guo Customize visualization (NEW!)

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Activity: CodeLens 2.2.1 (cl_l15_2b_en)

2.3. Incrementing the variable

1 x = 1 2 print(x) 3 x = x + 1 4 print(x) 5 x = x + 1 6 print(x) Edit this code line that just executed next line to execute << First < Prev Next > Last >> Step 1 of 6 Submit Python Tutor by Philip Guo Customize visualization (NEW!)

Print output (drag lower right corner to resize) Frames Global frame Objects

Activity: CodeLens 2.3.1 (cl_l15_2c_en)

2.4. Using while

1 x = 1 2 while x <= 3: 3     print(x) 4     x = x +1 Edit this code line that just executed next line to execute << First < Prev Next > Last >> Step 1 of 11 Submit Python Tutor by Philip Guo Customize visualization (NEW!)

Print output (drag lower right corner to resize) Frames Global frame Objects

Activity: CodeLens 2.4.1 (cl_l15_2d_en)

2.4.1. Desk checking

x = 1
while x <= 3:
    print(x)
    x = x + 1

Desk checking

x	Screen
-1-	1
-2-	2
-3-	3
4

1 x = 1 2 while x <= 3: 3     print(x) 4     x = x + 1 Edit this code line that just executed next line to execute << First < Prev Next > Last >> Step 1 of 11 Submit Python Tutor by Philip Guo Customize visualization (NEW!)

Print output (drag lower right corner to resize) Frames Global frame Objects

Activity: CodeLens 2.4.1.1 (cl_l15_2e_en)

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