Day-1 Markdown学习

最多六级标题

一级标题: "#" + " " + "标题名字"
二级标题: "##" + " " + "标题名字"
三级标题: "###" + " " + "标题名字"
四级标题: "####" + " " + "标题名字"
五级标题: "#####" + " " + "标题名字"
六级标题: "######" + " " + "标题名字"

粗体： "**" + "内容" + "**"
斜体： "*" + "内容" + "*"
斜体加粗： "***" + "内容" + "***"
删除线: "~~" + "内容" + "~~"

">" + "内容"

"---"
"***"

"![" + "图片名字" + "](" + "图片地址" + ")"

"[" + "内容" + "](" + "超链接地址" + ")"

有序列表: "数字" + "." + " "
无序列表: "-" + " "

|列名|列名|列名|
|--|--|--|
|内容|内容|内容|

每一列必须一一对应，可以增加删除列

"```" + "语言名称" + "```"