JQuerytoggle use analysis _ jquery

Today, I am talking about the toggle in JQuery. The article involves some problems. I hope you can help me solve them. Today we will focus on a toggle (fn, fn ,....) A function is mainly used to switch the rotation operation of an event.
For example, for a button click event and a DIV background, click a button once to display the DIV background in blue.
Change the background color to black.
The HTML code we define is as follows:

The id "DivToggle" is displayed here.

The initial style is defined as follows:

The Code is as follows:

# DivToggle {
Height: 150px;
Width: 200px;
Margin: 50px;
Background-color: # 6CC;
}

In toggle (fn, fn ,....); A toggle () function is used to switch the display status of an element. If an element is displayed, it is hidden after. toggle () is called.

JQuery code:

The Code is as follows: