原创 使用JPA存儲Map <String，String> - Storing a Map<String,String> using JPA
問題： I am wondering if it is possible using annotations to persist the attributes map in the following class using JPA2
2021-12-28 21:18:05
原创 C語言中結構體和指針的malloc - malloc for struct and pointer in C
問題： Suppose I want to define a structure representing length of the vector and its values as:假設我想定義一個表示向量長度及其值的結構： stru
2021-12-28 21:18:05
原创 How to Set/Update State of StatefulWidget from other StatefulWidget in Flutter?
問題： For Example in the below code plus button works and able to update the text but the minus button does not.例如，在下面的代
2021-12-28 21:18:04
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原创 如何更改外鍵引用動作？ （行爲） - How to change the foreign key referential action? (behavior)
問題： I have set up a table that contains a column with a foreign key, set to ON DELETE CASCADE (delete child when paren
2021-12-28 21:18:04
原创 Which HTML5 tags can I use without worrying about browser compatibility?
問題： I am building a web app for use on PCs. 我正在構建一個用於PC的Web應用程序。 What are the HTML5 tags to stay away from to prevent
2021-12-28 09:18:11
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原创 Tomcat - maxThreads 與 maxConnections - Tomcat - maxThreads vs maxConnections
問題： In Tomcat server.xml what is maxThreads versus maxConnections在 Tomcat server.xml什麼是maxThreads與maxConnections I und
2021-12-28 09:18:06
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原创 如何忽略正則表達式主題字符串中的空格？ - How to ignore whitespace in a regular expression subject string?
問題： Is there a simple way to ignore the white space in a target string when searching for matches using a regular expr
2021-12-28 09:18:06
2
原创 JPA 與 Spring JdbcTemplate [關閉] - JPA vs Spring JdbcTemplate [closed]
問題： Closed . 關閉。 This question needs to be more focused . 這個問題需要更加集中。 It is not currently accepting answers. 它目前不接
2021-12-28 09:18:06
5
原创 javascript過濾數組多個條件 - javascript filter array multiple conditions
問題： I want to simplify an array of objects.我想簡化一組對象。 Let's assume that I have following array:讓我們假設我有以下數組： var users =
2021-12-28 09:18:06
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原创 Android RecyclerView 滾動性能 - Android RecyclerView Scrolling Performance
問題： I have created RecyclerView example basing on Creating Lists and Cards guide.我根據創建列表和卡片指南創建了 RecyclerView 示例。 My ad
2021-12-28 09:18:06
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原创 如何配置我的Android應用？ [關閉] - How can I profile my Android app? [closed]
問題： I need to find where the bottlenecks are in my Android app. 我需要找到Android應用中瓶頸的位置。 What profiling tools or techni
2021-12-28 09:18:06
1
原创 GNU 屏幕無響應，似乎被阻止 - The GNU screen is unresponsive, seems blocked
問題： GNU Screen seems to freeze. GNU Screen 似乎凍結了。 Unable to enter user input.無法輸入用戶輸入。 I was using GNU screen and when
2021-12-28 09:18:06
原创 過濾包含在 EF Core 中 - Filtering on Include in EF Core
問題： I'm trying to filter on the initial query.我正在嘗試過濾初始查詢。 I have nested include leafs off a model.我在模型上嵌套了包含葉子。 I'm tr
2021-12-28 09:18:05
原创 如何僅展平numpy數組的某些維度 - How to flatten only some dimensions of a numpy array
問題： Is there a quick way to "sub-flatten" or flatten only some of the first dimensions in a numpy array? 有沒有一種快速的方法來“平
2021-12-28 09:18:05
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原创 Using socket.io in Express 4 and express-generator's /bin/www
問題： So here is the deal: I'm trying to use socket.io in an express project.所以這就是交易：我正在嘗試在一個快速項目中使用 socket.io。 After Exp
2021-12-27 21:18:06
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