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python - while（i%3）該怎么理解？

在看慕課的課程，有段代碼為： {代碼...} while后面的條件要為真，才能夠執(zhí)行代碼塊，但是i%3這個(gè)代表了什么條件呢？

From [Pythondiscussion group] 2017-04-18 10:13:14 0  10  2817

python - print("%s's %s is %s." % \) 有具體代碼，請(qǐng)問(wèn)這種怎么解釋？

{代碼...}

From [Pythondiscussion group] 2017-04-18 10:13:21 0  3  2806

python3.x - Python中出現(xiàn)AttributeError: object has no attribute

A Python spaceship game code written according to the book is also written according to the book, but I don’t ...

From [Pythondiscussion group] 2017-06-22 11:52:28 0  4  2767

python 的 EOFError: EOF when reading a line 是什么原因？

在程序執(zhí)行過(guò)程中，出現(xiàn)過(guò)如題的錯(cuò)誤信息。 google了一些，好像是python或部署的原因，但是有這些錯(cuò)誤信息： {代碼...} 這是權(quán)限問(wèn)題？ 到底是什么問(wèn)題呢？

From [Pythondiscussion group] 2017-04-17 11:25:43 0  2  2766

python - 給定一個(gè)2n長(zhǎng)的數(shù)組將奇數(shù)放在偶數(shù)前面

給定一個(gè)2n長(zhǎng)數(shù)組，其中n個(gè)奇數(shù)和n個(gè)偶數(shù)，對(duì)數(shù)組進(jìn)行排序?qū)⑵鏀?shù)放在前半部分，偶數(shù)放在后半部分。要求： 不改變?cè)瓉?lái)的奇偶各自的相對(duì)順序 只申請(qǐng)常數(shù)的空間 時(shí)間復(fù)雜度為O(n) 舉例：給出1 2 3 4 5 6排序后為 1...

From [Pythondiscussion group] 2017-04-17 17:58:17 0  17  2757

django - Python error: [Errno 99] Cannot assign requested address

{Code...} I couldn’t find the corresponding question on google, please help if I’m new to py~~

From [Pythondiscussion group] 2017-07-05 10:46:18 0  1  2739

About TypeError: missing 1 required positional argument in Python

I started to learn python and I am looking at the part about data structures about graphs. This is to implemen...

From [Pythondiscussion group] 2017-06-14 10:51:00 0  1  2734

python - pycharm能夠同時(shí)運(yùn)行多個(gè)程序么？

pycharm能夠同時(shí)運(yùn)行多個(gè)程序么？

From [Pythondiscussion group] 2017-04-17 13:56:56 0  5  2728

How to deal with this error in python pymysql.err.ProgrammingError: (1064, ' at line 1")

{Code...} How to deal with this error? The error reported in python3.5.2 is as follows. Log format

From [Pythondiscussion group] 2017-05-18 11:01:36 0  2  2707

python - 使用requests請(qǐng)求網(wǎng)頁(yè)，遇到sslv3 alert handshake failure

Traceback (most recent call last): File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/...

From [Pythondiscussion group] 2017-04-17 17:23:11 0  0  2689

python - How can I optimize the speed of pandas' read_sql?

My needs require data query and correlation between multiple databases, so I chose to use pandas, read the dat...

From [Pythondiscussion group] 2017-06-28 09:22:30 0  1  2687

Python regular expression problem, what does (?i) mean?

filter(re.compile('(?i)([qwertyuiop]|[asdfghjkl]|[zxcvbnm]*)$').match, words) As above, this is a Python state...

From [Pythondiscussion group] 2017-05-18 11:00:09 0  1  2686

java - 如何發(fā)布一個(gè)產(chǎn)品？

發(fā)布一個(gè)windows桌面應(yīng)用的流程是怎么樣的？ 是需要去windows應(yīng)用商店去進(jìn)行開(kāi)發(fā)者認(rèn)證？現(xiàn)在發(fā)布的產(chǎn)品殺毒軟件都會(huì)報(bào)風(fēng)險(xiǎn)，病毒之類的。是要去一個(gè)類似公共數(shù)據(jù)庫(kù)的地方提交軟件嗎？

From [Pythondiscussion group] 2017-04-17 17:50:40 0  2  2682

python - 如何將dataframe導(dǎo)入到excel且不覆蓋原有內(nèi)容

使用了pandas的to_excel方法，但每次都會(huì)覆蓋原來(lái)的內(nèi)容。請(qǐng)問(wèn)還有什么方法可以將dataframe格式的數(shù)據(jù)導(dǎo)入到excel呢？

From [Pythondiscussion group] 2017-04-18 10:31:21 0  2  2613

python - Problem installing any package with pip: Cannot unpack file /tmp/pip-KzJgHD-unpack/simple

{code...}

From [Pythondiscussion group] 2017-05-18 10:56:38 0  1  2582