
關於教小朋友寫程式這件事,其實主要是爸爸自己覺得好玩和小貝哥自己有興趣,並不是什麼孩子的未來不能等XD
以前就有嘗試用ipad 讓他玩玩看Scratch,但是一來不太想讓他太早就接觸平版,二來哥哥在"玩"程式,妹妹也會來亂(就是想點出一堆角色),兩個人容易吵的不可開交,最後其實都在亂玩,並沒有系統的學習,所以覺得現階段並不太適合。
大數據不是萬靈丹,然後沒有統計基礎的 AB Test 都是假的
如果我們每個人都雇用比我們小的人,我們將成為一個矮人公司。但如果我們每個人都雇用比我們更高大的人,我們將成為一個巨人公司。
Is Java still free?
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Datasetjoin1 = impression.join(broadcast(view), col, LeftOuter.toString()) .na() .fill(0, new String[] {"viewCount"});
先求有,再求好,等到程式會動了,確定結果是大家想要的,有符合商業價值了,再來調教也不遲!
!"#$%&'()*+,-./:;<=>?@[\]^_`{|}~
['?:!.,;]*([a-z]+)['?:!.,;]*
POSIX character classes (US-ASCII only) | |
---|---|
\p{Lower} |
A lower-case alphabetic character: [a-z] |
\p{Upper} |
An upper-case alphabetic character:[A-Z] |
\p{ASCII} |
All ASCII:[\x00-\x7F] |
\p{Alpha} |
An alphabetic character:[\p{Lower}\p{Upper}] |
\p{Digit} |
A decimal digit: [0-9] |
\p{Alnum} |
An alphanumeric character:[\p{Alpha}\p{Digit}] |
\p{Punct} |
Punctuation: One of !"#$%&'()*+,-./:;<=>?@[\]^_`{|}~ |
\p{Graph} |
A visible character: [\p{Alnum}\p{Punct}] |
\p{Print} |
A printable character: [\p{Graph}\x20] |
\p{Blank} |
A space or a tab: [ \t] |
\p{Cntrl} |
A control character: [\x00-\x1F\x7F] |
\p{XDigit} |
A hexadecimal digit: [0-9a-fA-F] |
\p{Space} |
A whitespace character: [ \t\n\x0B\f\r] |
"䶵" | U+4DB5 | cjk Ideograph Extension A, Last |