document.addEventListener("visibilitychange", function() {
console.log( document.visibilityState );
});
https://blog.csdn.net/wxl1555/article/details/79717680
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document.addEventListener("visibilitychange", function() {
console.log( document.visibilityState );
});
https://blog.csdn.net/wxl1555/article/details/79717680
相关文章：