Python教學(2) if for while Lesson Slides: 18 Slides (Grade 11)

18 Slides • 8 Questions

1

Python教學(2)

2

IF Statement

3

IF Statement

Python supports the usual logical conditions from mathematics:

Equals: a == b
Not Equals: a != b
Less than: a < b
Less than or equal to: a <= b
Greater than: a > b
Greater than or equal to: a >= b

4

IF Statement

if
if...else
if...elif...else

5

IF (單向)

6

IF...ELSE...(雙向)

7

IF...ELIF...(多重條件)

8

IF...ELIF...ELSE(多重條件)

9

Multiple Choice

圖中的程式能否正確執行?

1

可正常執行

2

無法執行

10

Multiple Choice

圖中的程式能否正確執行?

1

可正常執行

2

無法執行,

因缺少了標點符號

3

無法執行,

因if 條件句缺少了縮排

11

Multiple Choice

執行圖中的程式結果為何?

1

印出A

2

印出B

3

沒有印出任何結果

12

While Loops

while 條件
執行程式

13

While Loops

14

While Loops---break

結果:
1
2
3

15

While Loops---break

結果:
1
2
4
5
6

16

Fill in the Blanks

In the loop, when i is 3, jump directly to the next iteration.

Type answer...

17

Fill in the Blanks

Print a message once the condition is false.

18

For Loops(列印lists中的元素)

19

For Loops(列印字串中的字母)

20

For Loops(列印字串中的字母)

21

For Loops(列印數字範圍)

Note that range(6) is not the values of 0 to 6, but the values 0 to 5.

22

For Loops(列印數字範圍)

range(2, 6), which means values from 2 to 6 (but not including 6):

23

Multiple Choice

執行圖中的程式結果為何?

1

Exit the loop when x is "cherry"

2

Only print "apple"

3

Print "apple" and "banana"

4

Print all elements

24

Multiple Choice

執行圖中的程式結果為何?

1

Exit the loop when x is "cherry"

2

Only print "apple"

3

Print "apple" and "banana"

4

Print all elements

25

Multiple Choice

執行圖中的程式結果為何?

1

0

1

2

3

2

1

2

3

4

3

2

3

4

5

4

3

4

5

6

26

For inner Loops(巢狀回圈)

Python教學(2)

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