大约有 43,100 项符合查询结果(耗时:0.0529秒) [XML]

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What is the coolest thing you can do in

... You forgot 35 PRINT CHR$(7) – Adam Jaskiewicz May 1 '09 at 16:25 6 ...
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How do I match any character across multiple lines in a regular expression?

... The s flag is (now?) invalid, at least in Chrome/V8. Instead use /([\s\S]*)<FooBar>/ character class (match space and non-space] instead of the period matcher. See other answers for more info. – Allen May 9 '13 at 15:37 ...
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PostgreSQL: Difference between text and varchar (character varying)

...ELECT array_to_string( array_agg( substring(md5(random()::text),1,$1)||chr( 9824 + (random()*10)::int ) ), ' ' ) as s FROM generate_series(1, $2) i(x); $f$ LANGUAGE SQL IMMUTABLE; Prepare specific test (examples) DROP TABLE IF EXISTS test; -- CREATE TABLE test ( f varchar(500)); -- CREATE...
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Javascript Functions and default parameters, not working in IE and Chrome

... The code you provided won't run in Chrome < version 49: https://kangax.github.io/compat-table/es6/#test-default_function_parameters You used valid ECMAScript 2015 syntax: MDN: Default Parameters. ES2015 Spec: default value parameter initializers In ...
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What are the Ruby Gotchas a newbie should be warned about? [closed]

...tring); to obtain "a" use "abc"[0,1] (a substring of length 1) or "abc"[0].chr. The notation statement until expression, unlike other languages' equivalent statements (e.g. do { statement } while (not(expression)); in C/C++/...), actually never runs the statement if the expression is already true. T...
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What are the “standard unambiguous date” formats for string-to-date conversion in R?

... I used anydate() on a column with string values of mm-dd (no yy). All <chr> values in the column were successfully converted to <date>. Unfortunately, it set the year to '1400' instead of '2020'. ¯_(ツ)_/¯ – owlstone May 23 at 18:38 ...
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What are the differences between vector and list data types in R?

... edited Mar 11 '18 at 20:50 ChrisF♦ 124k2828 gold badges239239 silver badges311311 bronze badges answered Sep 2 '14 at 19:22 ...
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List of All Locales and Their Short Codes?

...cco Tamazight (Latin, Morocco)", tzm: "Central Morocco Tamazight", chr_US: "Cherokee (United States)", chr: "Cherokee", cgg_UG: "Chiga (Uganda)", cgg: "Chiga", zh_Hans: "Chinese (Simplified Han)", zh_Hans_CN: "Chinese (Simplified Han, China)", zh_Hans_HK: "Chinese (Si...
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How to print color in console using System.out.println?

...d it to output. it's not Java's fault that the Windows console treats ESC (chr(27)) as just another glyph (←). share | improve this answer | follow | ...
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Simple Digit Recognition OCR in OpenCV-Python

....exit() elif key in keys: responses.append(int(chr(key))) sample = roismall.reshape((1,100)) samples = np.append(samples,sample,0) responses = np.array(responses,np.float32) responses = responses.reshape((responses.size,1)) print "training...