first

hello world
this is my test

这是

一级标题

'''
File: _Dictionary_ 
Autor: yuen
time: 2022/10/2
'''
from typing import Counter

txt = open('./data.txt').read()
print(type(txt))
for s in " , . \n ' ": # 去除文档中标点符号
    txt = txt.replace(s, "")

def count_way1(): # 字典特性查询字母出现次数
    count = {}
    for i in txt:
        if i not in count:
            count[i] = 1
        else:
            count[i] = count[i] + 1
    print('字典方式计算data.txt字母统计：\n',count)

def count_way2 (): #counter函数统计字母次数
    count1 = Counter(txt)
    print('counter函数方式字母统计：\n',count1)

def count_way3(): # setdefault函数统计字母次数
    count2 = {}
    for char in txt:
        count2.setdefault(char, 0)
        count2[char] += 1
    print('setdefault函数方式字母统计：\n',count2) 

count_way1()
count_way2()
count_way3()

这是

二级标题

这是

三级标题

这是

四级标题

这是

五级标题

这是

六级标题

这会是 斜体 的文字
这会是 斜体 的文字

这会是 粗体 的文字
这会是 粗体 的文字

你也 组合 这些符号

这个文字将会被横线删除

• Item 1
• Item 2
  • Item 2a
  • Item 2b

1. Item 1
2. Item 2
3. Item 3
   1. Item 3a
   2. Item 3b

正如 Kanye West 所说：

We’re living the future so
the present is our past.

如下，三个或者更多的

---

连字符

---

星号

---

下划线
我觉得你应该在这里使用
<addr> 才对。

require 'redcarpet'
markdown = Redcarpet.new("Hello World!")
puts markdown.to_html

'''
File: _Dictionary_ 
Autor: yuen
time: 2022/10/2
'''
from typing import Counter

txt = open('./data.txt').read()
print(type(txt))
for s in " , . \n ' ": # 去除文档中标点符号
    txt = txt.replace(s, "")

def count_way1(): # 字典特性查询字母出现次数
    count = {}
    for i in txt:
        if i not in count:
            count[i] = 1
        else:
            count[i] = count[i] + 1
    print('字典方式计算data.txt字母统计：\n',count)

def count_way2 (): #counter函数统计字母次数
    count1 = Counter(txt)
    print('counter函数方式字母统计：\n',count1)

def count_way3(): # setdefault函数统计字母次数
    count2 = {}
    for char in txt:
        count2.setdefault(char, 0)
        count2[char] += 1
    print('setdefault函数方式字母统计：\n',count2) 

count_way1()
count_way2()
count_way3()

{.class1 .class}
function add(x, y) {
  return x + y
}

{.line-numbers}
function add(x, y) {
  return x + y
}

{highlight
print(hello world)
print(hello world)
print(hello world)
print(hello world)
print(hello world)
print(hello world)
print(hello world)

{highlight
print(hello world)
print(hello world)
print(hello world)
print(hello world)
print(hello world)
print(hello world)
print(hello world)
print(hello world)

{highlight
print(hello world)
print(hello world)
print(hello world)
print(hello world)
print(hello world)
print(hello world)
print(hello world)
print(hello world)

• @mentions, #refs, links, formatting, and tags supported
• list syntax required (any unordered or ordered list supported)
• this is a complete item
• this is an incomplete item

First Header	Second Header
Content from cell 1	Content from cell 2
Content in the first column	Content in the second column

😄
:fa-car:

30^th^

H2O

Content [^1]

*[HTML]: Hyper Text Markup Language
*[W3C]: World Wide Web Consortium
The HTML specification
is maintained by the W3C.

==marked==

$ f(x)= sinx + b$

{cmd
import matplotlib.pyplot as plt
plt.plot([1,2,3, 4])
plt.show() # show figure

[^1]: Hi! This is a footnote