Detailed explanation of the case of JS getting the iframe of the parent window and child window

This time I will bring you a detailed explanation of the case of JS getting the iframe of the parent window and the child window. What are the precautions for JS getting the iframe of the parent window and the child window? The following is a practical case, let's take a look. .

frame

js

1,

格式：window.frames["iframe的name值"].document.getElementByIdx_x("iframe中控件的ID").click();
实例：window.frames["ifm"].document.getElementByIdx_x("btnOk").click();

2,

var obj=document.getElementByIdx_x("iframe的name").contentWindow;
var ifmObj=obj.document.getElementByIdx_x("iframe中控件的ID");

Instance:

var obj=document.getElementByIdx_x("ifm").contentWindow;
var ifmObj=obj.document.getElementByIdx_x("btnOk");
ifmObj.click();

Get the elements of the parent window in iframe

格式：window.parent.document.getElementByIdx_x("父窗口的元素ID").click();
实例：window.parent.document.getElementByIdx_x("btnOk").click();

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