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图片设置高度100% 宽度auto ，父级高度改小，safari里为什么图片会被压扁，google浏览器正常?

图片设置高度100% 宽度auto ，父级高度改小，safari里为什么图片会被压扁，google浏览器正常。。。...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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html - How to show collections page list in second div, when click on collection name in first div ? (JEKYLL)

I am new to jekyll and have beginner experience in js. [Jekyll version: 4.2.0] I have left navigation pane, center content, and ... id="items">{{ page.title }}</a> {% endfor %}...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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twitter bootstrap - can't see my drop down button on collapse

I'm new to learning bootstrap and am tryin to make my site a responsive nav bar. When I collapse the page, I can't see the typical ... Tour</a></li> </ul> </div> </div> </nav>...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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自定义组件如何效验？

红框里面的为自定义组件，我该如何进行效验呢？...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - onActivityResult() doesn´t work in my fragment

I′m trying to scan a QR code using a Button in my HomeFragment of a Navigation Drawer. I did it once in an activity, but when ... (), "No Results", Toast.LENGTH_LONG).show(); } } }...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Join two queries SQLAlchemy

I need to join two queries and get all the columns from both, but the returned object only contains the columns ... and_(subq_promotions.columns.p_ean == cls.ean)) return results...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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regex - R extract specific text inside a string

I have a data.table with 1 Million rows with each cell looking like this: ENST00000408384 // ENSEMBL // ncrna: ... and gave up after several hours. Appreciate your help. Thanks....

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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demandware - Create session redirect link in content asset

Our company has multiple brands and each brand has its own host name, but they are all part of the same ... content asset keeping all the session information? Thanks in advance....

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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linux - Start and stop EC2 and then enable/check services on instance using bash

I need to stop start multiple EC2 instances and run few command after they start, using bash on the same manage ... know the logic but please help me with the script details....

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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asp.net mvc 如何集成angular-ui-router？

我使用asp.net mvc 集成 angular-ui-router，无法正确显示ui-view中的界面！我不知道是不是因为asp.net mvc的路由机制和angular的路由机制冲突的问题！如果有demo的话，望不吝赐教！...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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537 views

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Javascript 正则表达式非获取匹配的问题

现在我有这么一个字符串： <span class="php_start"><?php</span> //Demo 0-2 <span class="php_var">$str</span>="Hello World"; <span class=" ... ------------------ 查了一下，javascript正则不支持反向预查！！！...