var a = {b:function(){console.log(this)},c:console.log(this)};打印a.c
輸出Window {external: Object, chrome: Object, document: document, document_saved: 0, GoogleAnalyticsObject: "ga"…}還有`var el = document.getElementById("outside");
el.addEventListener("click", function(){modifyText("four")}, false);`和`<table id="t" onclick="modifyText();">`這里面modifyText()中的this指向有什么異同？
js這個this指向window？
明月笑刀無情
2018-09-05 09:09:41