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版本:22.5.0

Mouse.wheel() 方法

分派一个 mousewheel 事件。

签名:

class Mouse {
abstract wheel(options?: Readonly<MouseWheelOptions>): Promise<void>;
}

参数

参数类型描述
optionsReadonly<MouseWheelOptions>(可选) 可选:MouseWheelOptions

返回值

Promise<void>

示例

放大元素的示例

await page.goto(
'https://mdn.mozillademos.org/en-US/docs/Web/API/Element/wheel_event$samples/Scaling_an_element_via_the_wheel?revision=1587366'
);

const elem = await page.$('div');
const boundingBox = await elem.boundingBox();
await page.mouse.move(
boundingBox.x + boundingBox.width / 2,
boundingBox.y + boundingBox.height / 2
);

await page.mouse.wheel({deltaY: -100});