这个闭包在在初始页面加载完成后立即执行。
This closure will be executed as soon as the initial page finishes loading.
该方法在整个页面加载时调用这个可切换系统。
This method causes the swappable system to be invoked when the entire page is loaded.
第一行在页面加载时调用 清单 4 中的函数。
The first line calls the function in Listing 4 when the page loads.
应用推荐