\W and [a-za-z0-9_], \Are D and [0-9] equivalent?

When I first looked at regular expressions, I had this doubt , Why does Baidu Encyclopedia say so ？
You have to understand unicode Character set , Of course, you can also figure out the character set of Chinese characters, English and numbers ？Unicode Encyclopedia of characters
Chinese characters are in unicode In the table is 4e00-9fa5
english , Numbers and special symbols belong to unicode Latin in
therefore \w Just like [A-Za-z0-9_] It's much more extensive , For example, it can match the words of other countries , and \d Can match the numbers of other countries .
More than \w and \d The scope of is , In regular metacharacters . \W,\D,\s,\S,\b,\B It can also match other words , So how can it not match all Unicode The characters ？
adopt re.ASCII To set only match ASCII character

import re

# Expand Arabia - Indic digit 
s="۱۲۳۴۵۶۷۸۹"
print(s.isdigit())
a= re.match(r'\d+', s)
print(a.group())  
#True


# Mongolian 
d = 'ᠠᠡᠢᠣᠤᠶᠿ'
b= re.match(r'\w+', d) # Match alphanumeric underscores 
print(b.group())
#۱۲۳۴۵۶۷۸۹

# Mongolian 
d = 'ᠠᠡᠢᠣᠤᠶᠿ'
b= re.match(r'\D+', d) # Match a non number 
print(b.group())
#ᠠᠡᠢᠣᠤᠶᠿ

# Mongolian 
d = 'ᠠᠡᠢᠣᠤᠶᠿ'
b= re.match(r'\S+', d) # Match a visible character 
print(b.group())
#ᠠᠡᠢᠣᠤᠶᠿ

s="۱۲۳۴۵۶۷۸۹"
print(s.isdigit())
a= re.match(r'.+', s)
print(a.group())  


# Mongolian 
d = 'ᠠᠡᠢᠣᠤᠶᠿᠢᠣᠤ'
b= re.findall(r'\bᠠᠡ', d) # Matches a word boundary 
print(b)
# ['ᠠᠡ']

after re.ASCII Set up , \w You can't match anything by matching Mongolian

# Mongolian 
d = 'ᠠᠡᠢᠣᠤᠶᠿᠢᠣᠤ'
b= re.findall(r'\wᠠᠡ', d,re.ASCII)# Matches a word boundary , Limit to ASCII in 
print(b)
# []  It doesn't match anything