or
or
By clicking below, you agree to our terms of service.
New to HackMD? Sign up
Syntax | Example | Reference | |
---|---|---|---|
# Header | Header | 基本排版 | |
- Unordered List |
|
||
1. Ordered List |
|
||
- [ ] Todo List |
|
||
> Blockquote | Blockquote |
||
**Bold font** | Bold font | ||
*Italics font* | Italics font | ||
~~Strikethrough~~ | |||
19^th^ | 19th | ||
H~2~O | H2O | ||
++Inserted text++ | Inserted text | ||
==Marked text== | Marked text | ||
[link text](https:// "title") | Link | ||
 | Image | ||
`Code` | Code |
在筆記中貼入程式碼 | |
```javascript var i = 0; ``` |
|
||
:smile: | ![]() |
Emoji list | |
{%youtube youtube_id %} | Externals | ||
$L^aT_eX$ | LaTeX | ||
:::info This is a alert area. ::: |
This is a alert area. |
On a scale of 0-10, how likely is it that you would recommend HackMD to your friends, family or business associates?
Please give us some advice and help us improve HackMD.
Do you want to remove this version name and description?
Syncing
xxxxxxxxxx
10/4 第四堂社課
今日講師:R緯
(Python班)
今日課程主題:
for迴圈
(for loop)
快速複習
例題1-複習
for迴圈
(for loop)
for [變數] in [序列]:
(for [variable] in [sequence]:)
What is a sequence???
補充:
陣列(Array), range()… ∈
序列(sequence)
串列(List), 元組(Tuple), 字典(Dictionary), 集合(Set)
∈ 陣列(Array)
range()函式
range(開始, 結束, 步長)
range(start, stop, step)
從start 開始。預設為0。
到stop 結束,但不包括stop。
step 步長,預設為1。
三項parameter:
range(start, stop, step)
output
二項parameter:
range(start, stop) ≡ range(start, stop, 1)
step預設為1
output
一項parameter:
range(stop) ≡ range(0, stop, 1)
step預設為1, start預設為0
output
for和while都是迴圈
因此break, continue, pass也可以在for中
例題二-示範
例題三~五
END