blockly >blockRendering >抽屉式导航栏 >drawLeft_
blockRendering.Drawer.drawLeft_() 方法
为代码块左侧添加步骤，其中可能包括输出连接
Signature:
protected drawLeft_(): void;
返回：
void
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最后更新时间 (UTC)：2024-10-15。
[[["易于理解","easyToUnderstand","thumb-up"],["解决了我的问题","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["没有我需要的信息","missingTheInformationINeed","thumb-down"],["太复杂/步骤太多","tooComplicatedTooManySteps","thumb-down"],["内容需要更新","outOfDate","thumb-down"],["翻译问题","translationIssue","thumb-down"],["示例/代码问题","samplesCodeIssue","thumb-down"],["其他","otherDown","thumb-down"]],["最后更新时间 (UTC)：2024-10-15。"],[[["The `blockRendering.Drawer.drawLeft_()` method is responsible for rendering the left side of a block within the Blockly framework."],["This rendering process may include an output connection if the block is designed to have one."],["The method is classified as protected, indicating its intended use within the library's internal structure."],["Upon completion of its operations, the `drawLeft_()` method returns void, signifying that it doesn't directly produce a value."]]],["The `drawLeft_()` method, part of the `blockRendering.Drawer` class, is responsible for constructing the left side of a block within a visual programming environment. This includes adding any necessary steps to represent elements that might reside on the left. Specifically, it handles the potential presence of an output connection on the left side of the block. It does not return any value.\n"]]