为什么打点计时器所用的学生电源是6V的交流电，而不是直流电？

基本文件流程错误 SQL 调试

/www/wwwroot/www.zhanqun22.com/public/index.php ( 1.16 KB )
/www/wwwroot/www.zhanqun22.com/thinkphp/base.php ( 1.71 KB )
/www/wwwroot/www.zhanqun22.com/thinkphp/library/think/Loader.php ( 12.70 KB )
/www/wwwroot/www.zhanqun22.com/vendor/composer/autoload_static.php ( 14.51 KB )
/www/wwwroot/www.zhanqun22.com/thinkphp/library/think/Error.php ( 4.00 KB )
/www/wwwroot/www.zhanqun22.com/thinkphp/library/think/Container.php ( 17.20 KB )
/www/wwwroot/www.zhanqun22.com/thinkphp/library/think/App.php ( 27.58 KB )
/www/wwwroot/www.zhanqun22.com/thinkphp/library/think/Env.php ( 2.85 KB )
/www/wwwroot/www.zhanqun22.com/thinkphp/library/think/Config.php ( 9.71 KB )
/www/wwwroot/www.zhanqun22.com/thinkphp/convention.php ( 11.74 KB )
/www/wwwroot/www.zhanqun22.com/application/tags.php ( 1.02 KB )
/www/wwwroot/www.zhanqun22.com/thinkphp/library/think/Hook.php ( 5.58 KB )
/www/wwwroot/www.zhanqun22.com/application/common.php ( 35.60 KB )
/www/wwwroot/www.zhanqun22.com/thinkphp/helper.php ( 20.40 KB )
/www/wwwroot/www.zhanqun22.com/application/provider.php ( 0.63 KB )
/www/wwwroot/www.zhanqun22.com/config/aip.php ( 0.23 KB )
/www/wwwroot/www.zhanqun22.com/config/app.php ( 1.39 KB )
/www/wwwroot/www.zhanqun22.com/config/cache.php ( 0.98 KB )
/www/wwwroot/www.zhanqun22.com/config/console.php ( 0.91 KB )
/www/wwwroot/www.zhanqun22.com/thinkphp/library/think/facade/Env.php ( 1.17 KB )
/www/wwwroot/www.zhanqun22.com/thinkphp/library/think/Facade.php ( 3.44 KB )
/www/wwwroot/www.zhanqun22.com/config/cookie.php ( 1.11 KB )
/www/wwwroot/www.zhanqun22.com/config/database.php ( 3.84 KB )
/www/wwwroot/www.zhanqun22.com/config/gateway_worker.php ( 1.95 KB )
/www/wwwroot/www.zhanqun22.com/config/interface.php ( 0.22 KB )
/www/wwwroot/www.zhanqun22.com/config/jiaoyu_channel.php ( 15.20 KB )
/www/wwwroot/www.zhanqun22.com/config/jwt.php ( 0.71 KB )
/www/wwwroot/www.zhanqun22.com/config/log.php ( 1.19 KB )
/www/wwwroot/www.zhanqun22.com/config/middleware.php ( 0.85 KB )
/www/wwwroot/www.zhanqun22.com/config/pay.php ( 0.38 KB )
/www/wwwroot/www.zhanqun22.com/config/queue.php ( 1.10 KB )
/www/wwwroot/www.zhanqun22.com/config/session.php ( 1.09 KB )
/www/wwwroot/www.zhanqun22.com/config/sms.php ( 0.87 KB )
/www/wwwroot/www.zhanqun22.com/config/sys.php ( 0.28 KB )
/www/wwwroot/www.zhanqun22.com/config/template.php ( 1.39 KB )
/www/wwwroot/www.zhanqun22.com/config/worker.php ( 1. KB )
/www/wwwroot/www.zhanqun22.com/config/worker_server.php ( 2.02 KB )
/www/wwwroot/www.zhanqun22.com/vendor/symfony/polyfill-php80/bootstrap.php ( 1.50 KB )
/www/wwwroot/www.zhanqun22.com/vendor/symfony/deprecation-contracts/function.php ( 0.98 KB )
/www/wwwroot/www.zhanqun22.com/vendor/symfony/polyfill-ctype/bootstrap.php ( 1.56 KB )
/www/wwwroot/www.zhanqun22.com/vendor/symfony/polyfill-intl-grapheme/bootstrap.php ( 2.22 KB )
/www/wwwroot/www.zhanqun22.com/vendor/symfony/polyfill-intl-normalizer/bootstrap.php ( 0.71 KB )
/www/wwwroot/www.zhanqun22.com/vendor/symfony/polyfill-mbstring/bootstrap.php ( 7.07 KB )
/www/wwwroot/www.zhanqun22.com/vendor/ralouphie/getallheaders/src/getallheaders.php ( 1.60 KB )
/www/wwwroot/www.zhanqun22.com/vendor/symfony/string/Resources/functions.php ( 0.84 KB )
/www/wwwroot/www.zhanqun22.com/vendor/guzzlehttp/promises/src/functions_include.php ( 0.16 KB )
/www/wwwroot/www.zhanqun22.com/vendor/guzzlehttp/promises/src/functions.php ( 9. KB )
/www/wwwroot/www.zhanqun22.com/vendor/symfony/polyfill-php73/bootstrap.php ( 0.99 KB )
/www/wwwroot/www.zhanqun22.com/vendor/guzzlehttp/guzzle/src/functions_include.php ( 0.16 KB )
/www/wwwroot/www.zhanqun22.com/vendor/guzzlehttp/guzzle/src/functions.php ( 5.56 KB )
/www/wwwroot/www.zhanqun22.com/vendor/khanamiryan/qrcode-detector-decoder/lib/Common/customFunctions.php ( 1.99 KB )
/www/wwwroot/www.zhanqun22.com/vendor/nette/utils/src/loader.php ( 0.51 KB )
/www/wwwroot/www.zhanqun22.com/vendor/topthink/think-helper/src/helper.php ( 7.35 KB )
/www/wwwroot/www.zhanqun22.com/vendor/topthink/think-queue/src/common.php ( 1.19 KB )
/www/wwwroot/www.zhanqun22.com/thinkphp/library/think/Console.php ( 23.46 KB )
/www/wwwroot/www.zhanqun22.com/vendor/topthink/think-worker/src/command.php ( 0.81 KB )
/www/wwwroot/www.zhanqun22.com/thinkphp/library/think/Db.php ( 7.67 KB )
/www/wwwroot/www.zhanqun22.com/thinkphp/library/think/Lang.php ( 7.38 KB )
/www/wwwroot/www.zhanqun22.com/thinkphp/library/think/Request.php ( 57.54 KB )
/www/wwwroot/www.zhanqun22.com/thinkphp/library/think/Log.php ( 8.92 KB )
/www/wwwroot/www.zhanqun22.com/thinkphp/library/think/log/driver/File.php ( 8.97 KB )
/www/wwwroot/www.zhanqun22.com/thinkphp/lang/zh-cn.php ( 12.58 KB )
/www/wwwroot/www.zhanqun22.com/route/index.php ( 2.54 KB )
/www/wwwroot/www.zhanqun22.com/thinkphp/library/think/facade/Route.php ( 3.84 KB )
/www/wwwroot/www.zhanqun22.com/thinkphp/library/think/Route.php ( 25.84 KB )
/www/wwwroot/www.zhanqun22.com/thinkphp/library/think/route/Domain.php ( 7.08 KB )
/www/wwwroot/www.zhanqun22.com/thinkphp/library/think/route/RuleGroup.php ( 16.45 KB )
/www/wwwroot/www.zhanqun22.com/thinkphp/library/think/route/Rule.php ( 28.92 KB )
/www/wwwroot/www.zhanqun22.com/thinkphp/library/think/route/RuleItem.php ( 8.84 KB )
/www/wwwroot/www.zhanqun22.com/thinkphp/library/think/route/RuleName.php ( 3.92 KB )
/www/wwwroot/www.zhanqun22.com/route/mobile.php ( 2.39 KB )
/www/wwwroot/www.zhanqun22.com/route/route.php ( 0.16 KB )
/www/wwwroot/www.zhanqun22.com/thinkphp/library/think/route/dispatch/Module.php ( 5.19 KB )
/www/wwwroot/www.zhanqun22.com/thinkphp/library/think/route/Dispatch.php ( 9.26 KB )
/www/wwwroot/www.zhanqun22.com/application/mobile/config/app.php ( 1.17 KB )
/www/wwwroot/www.zhanqun22.com/application/mobile/config/log.php ( 1.19 KB )
/www/wwwroot/www.zhanqun22.com/application/mobile/config/template.php ( 1.28 KB )
/www/wwwroot/www.zhanqun22.com/application/mobile/config/tencent.php ( 0.84 KB )
/www/wwwroot/www.zhanqun22.com/thinkphp/library/think/Middleware.php ( 5.34 KB )
/www/wwwroot/www.zhanqun22.com/thinkphp/library/think/Cookie.php ( 7.35 KB )
/www/wwwroot/www.zhanqun22.com/thinkphp/library/think/View.php ( 5.74 KB )
/www/wwwroot/www.zhanqun22.com/thinkphp/library/think/view/driver/Think.php ( 6.12 KB )
/www/wwwroot/www.zhanqun22.com/thinkphp/library/think/Template.php ( 47.31 KB )
/www/wwwroot/www.zhanqun22.com/thinkphp/library/think/template/driver/File.php ( 2.29 KB )
/www/wwwroot/www.zhanqun22.com/thinkphp/library/think/Session.php ( 14.13 KB )
/www/wwwroot/www.zhanqun22.com/thinkphp/library/think/Debug.php ( 7.57 KB )
/www/wwwroot/www.zhanqun22.com/thinkphp/library/think/Cache.php ( 3.27 KB )
/www/wwwroot/www.zhanqun22.com/thinkphp/library/think/cache/driver/File.php ( 7.99 KB )
/www/wwwroot/www.zhanqun22.com/thinkphp/library/think/cache/Driver.php ( 8. KB )
/www/wwwroot/www.zhanqun22.com/application/mobile/controller/Wenda.php ( 4.95 KB )
/www/wwwroot/www.zhanqun22.com/application/mobile/controller/Base.php ( 5.97 KB )
/www/wwwroot/www.zhanqun22.com/application/common/controller/Base.php ( 3.90 KB )
/www/wwwroot/www.zhanqun22.com/thinkphp/library/think/Controller.php ( 7.53 KB )
/www/wwwroot/www.zhanqun22.com/thinkphp/library/traits/controller/Jump.php ( 4.76 KB )
/www/wwwroot/www.zhanqun22.com/thinkphp/library/think/facade/Url.php ( 1.13 KB )
/www/wwwroot/www.zhanqun22.com/thinkphp/library/think/Url.php ( 13.22 KB )
/www/wwwroot/www.zhanqun22.com/thinkphp/library/think/db/Connection.php ( 58.93 KB )
/www/wwwroot/www.zhanqun22.com/thinkphp/library/think/db/connector/Mysql.php ( 6.22 KB )
/www/wwwroot/www.zhanqun22.com/thinkphp/library/think/db/builder/Mysql.php ( 5.85 KB )
/www/wwwroot/www.zhanqun22.com/thinkphp/library/think/db/Builder.php ( 36.76 KB )
/www/wwwroot/www.zhanqun22.com/thinkphp/library/think/db/Query.php ( 105.48 KB )
/www/wwwroot/www.zhanqun22.com/thinkphp/library/think/facade/Config.php ( 1.52 KB )
/www/wwwroot/www.zhanqun22.com/application/common/behavior/Observe.php ( 0. KB )
/www/wwwroot/www.zhanqun22.com/application/common/model/Wenda.php ( 3. KB )
/www/wwwroot/www.zhanqun22.com/application/common/model/Base.php ( 0.67 KB )
/www/wwwroot/www.zhanqun22.com/thinkphp/library/think/Model.php ( 28.52 KB )
/www/wwwroot/www.zhanqun22.com/thinkphp/library/think/model/concern/Attribute.php ( 17. KB )
/www/wwwroot/www.zhanqun22.com/thinkphp/library/think/model/concern/RelationShip.php ( 20.60 KB )
/www/wwwroot/www.zhanqun22.com/thinkphp/library/think/model/concern/ModelEvent.php ( 6.04 KB )
/www/wwwroot/www.zhanqun22.com/thinkphp/library/think/model/concern/TimeStamp.php ( 2.58 KB )
/www/wwwroot/www.zhanqun22.com/thinkphp/library/think/model/concern/Conversion.php ( 7.84 KB )
/www/wwwroot/www.zhanqun22.com/thinkphp/library/think/model/Collection.php ( 3.23 KB )
/www/wwwroot/www.zhanqun22.com/thinkphp/library/think/Collection.php ( 13.60 KB )
/www/wwwroot/www.zhanqun22.com/thinkphp/library/think/Response.php ( 9.68 KB )
/www/wwwroot/www.zhanqun22.com/thinkphp/library/think/response/View.php ( 2.77 KB )
/www/wwwroot/www.zhanqun22.com/runtime/temp/d2bd175e09f04a928b65f47ff681aa76.php ( 19.42 KB )
/www/wwwroot/www.zhanqun22.com/thinkphp/library/think/facade/Request.php ( 6.32 KB )
/www/wwwroot/www.zhanqun22.com/vendor/guzzlehttp/guzzle/src/Client.php ( 17.94 KB )
/www/wwwroot/www.zhanqun22.com/vendor/guzzlehttp/guzzle/src/ClientInterface.php ( 2.83 KB )
/www/wwwroot/www.zhanqun22.com/vendor/psr/http-client/src/ClientInterface.php ( 0.49 KB )
/www/wwwroot/www.zhanqun22.com/vendor/guzzlehttp/guzzle/src/ClientTrait.php ( 8.79 KB )
/www/wwwroot/www.zhanqun22.com/vendor/guzzlehttp/guzzle/src/HandlerStack.php ( 8.52 KB )
/www/wwwroot/www.zhanqun22.com/vendor/guzzlehttp/guzzle/src/Utils.php ( 12.71 KB )
/www/wwwroot/www.zhanqun22.com/vendor/guzzlehttp/guzzle/src/Handler/Proxy.php ( 2.23 KB )
/www/wwwroot/www.zhanqun22.com/vendor/guzzlehttp/guzzle/src/Handler/CurlMultiHandler.php ( 7.75 KB )
/www/wwwroot/www.zhanqun22.com/vendor/guzzlehttp/guzzle/src/Handler/CurlFactory.php ( 22.16 KB )
/www/wwwroot/www.zhanqun22.com/vendor/guzzlehttp/guzzle/src/Handler/CurlFactoryInterface.php ( 0. KB )
/www/wwwroot/www.zhanqun22.com/vendor/guzzlehttp/guzzle/src/Handler/CurlHandler.php ( 1.30 KB )
/www/wwwroot/www.zhanqun22.com/vendor/guzzlehttp/guzzle/src/Handler/StreamHandler.php ( 19.87 KB )
/www/wwwroot/www.zhanqun22.com/vendor/guzzlehttp/guzzle/src/Middleware.php ( 10.90 KB )
/www/wwwroot/www.zhanqun22.com/vendor/guzzlehttp/guzzle/src/RedirectMiddleware.php ( 7.50 KB )
/www/wwwroot/www.zhanqun22.com/vendor/guzzlehttp/guzzle/src/RequestOptions.php ( 10.32 KB )
/www/wwwroot/www.zhanqun22.com/vendor/guzzlehttp/psr7/src/Utils.php ( 13.91 KB )
/www/wwwroot/www.zhanqun22.com/vendor/guzzlehttp/psr7/src/Uri.php ( 21.33 KB )
/www/wwwroot/www.zhanqun22.com/vendor/psr/http-message/src/UriInterface.php ( 12.31 KB )
/www/wwwroot/www.zhanqun22.com/vendor/guzzlehttp/psr7/src/Request.php ( 3.81 KB )
/www/wwwroot/www.zhanqun22.com/vendor/psr/http-message/src/RequestInterface.php ( 4.70 KB )
/www/wwwroot/www.zhanqun22.com/vendor/psr/http-message/src/MessageInterface.php ( 6.75 KB )
/www/wwwroot/www.zhanqun22.com/vendor/guzzlehttp/psr7/src/MessageTrait.php ( 6.46 KB )
/www/wwwroot/www.zhanqun22.com/vendor/guzzlehttp/psr7/src/Stream.php ( 7.12 KB )
/www/wwwroot/www.zhanqun22.com/vendor/psr/http-message/src/StreamInterface.php ( 4.63 KB )
/www/wwwroot/www.zhanqun22.com/vendor/guzzlehttp/promises/src/Create.php ( 2.06 KB )
/www/wwwroot/www.zhanqun22.com/vendor/guzzlehttp/guzzle/src/PrepareBodyMiddleware.php ( 3.07 KB )
/www/wwwroot/www.zhanqun22.com/vendor/guzzlehttp/guzzle/src/Handler/EasyHandle.php ( 2.83 KB )
/www/wwwroot/www.zhanqun22.com/vendor/guzzlehttp/guzzle/src/Handler/HeaderProcessor.php ( 1.03 KB )
/www/wwwroot/www.zhanqun22.com/vendor/guzzlehttp/psr7/src/Response.php ( 4.79 KB )
/www/wwwroot/www.zhanqun22.com/vendor/psr/http-message/src/ResponseInterface.php ( 2.53 KB )
/www/wwwroot/www.zhanqun22.com/vendor/guzzlehttp/promises/src/FulfilledPromise.php ( 1.94 KB )
/www/wwwroot/www.zhanqun22.com/vendor/guzzlehttp/promises/src/PromiseInterface.php ( 2.79 KB )
/www/wwwroot/www.zhanqun22.com/vendor/guzzlehttp/promises/src/Utils.php ( 8.50 KB )
/www/wwwroot/www.zhanqun22.com/vendor/guzzlehttp/promises/src/TaskQueue.php ( 1. KB )
/www/wwwroot/www.zhanqun22.com/vendor/guzzlehttp/promises/src/TaskQueueInterface.php ( 0.42 KB )
/www/wwwroot/www.zhanqun22.com/vendor/guzzlehttp/promises/src/Promise.php ( 8.73 KB )
/www/wwwroot/www.zhanqun22.com/vendor/guzzlehttp/promises/src/Is.php ( 0.98 KB )
/www/wwwroot/www.zhanqun22.com/thinkphp/library/think/debug/Html.php ( 4.02 KB )

全部栏目

为什么打点计时器所用的学生电源是6V的交流电，而不是直流电？