在爬虫的时候，经常会遇到一些反爬机制，但在反爬中字体加密属于比较难解决的一部分。今天介绍一个比较简单的解密方法。
1、首先找到加密的字体，打开58的一个链接：https://zz.58.com/pinpaigongyu/?utm_source=market&spm=u-LlFBrx8a1luDwQM.sgppzq_zbt&PGTID=0d100000-0015-67a3-d744-1bb7d66dd6e2&ClickID=2，如下图
2、700的字体是加密的，然后找到这个标签，然后找到与之对应的标签【1】，复制，然后打开网页源码，找到标签【1】。，如下图：
3、复制AAAAAA~AAAAAA标注的这些内容。然后书写代码：
from fontTools.ttLib import TTFont
import base64
from io import BytesIO
from PIL import Image,ImageDraw,ImageFont
str = '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'
fanti = '餼麣麣'
def make_font_file(base64_string:str):
#将base64编码的字体字符串解码成二进制编码
bin_data = base64.decodebytes(base64_string.encode())
with open('textwoff.woff','wb') as f:
f.write(bin_data)
return bin_data
#第一种：生成XML文件，查看对应编码
def convert_font_to_xml(bin_data):
#ByteIO把一个二进制内存块当成文件来操作，
font = TTFont(BytesIO(bin_data))
#将解码字体保存为xml
font.saveXML("text.xml")
s = make_font_file(base64_string=str)
convert_font_to_xml(s)4、然后生成一个xml文件，找到文件中的cmap模块：
<cmap>
<tableVersion version="0"/>
<cmap_format_4 platformID="0" platEncID="3" language="0">
<map code="0x9476" name="glyph00009"/><!-- CJK UNIFIED IDEOGRAPH-9476 -->
<map code="0x958f" name="glyph00007"/><!-- CJK UNIFIED IDEOGRAPH-958F -->
<map code="0x993c" name="glyph00008"/><!-- CJK UNIFIED IDEOGRAPH-993C -->
<map code="0x9a4b" name="glyph00004"/><!-- CJK UNIFIED IDEOGRAPH-9A4B -->
<map code="0x9e3a" name="glyph00010"/><!-- CJK UNIFIED IDEOGRAPH-9E3A -->
<map code="0x9ea3" name="glyph00001"/><!-- CJK UNIFIED IDEOGRAPH-9EA3 -->
<map code="0x9f64" name="glyph00003"/><!-- CJK UNIFIED IDEOGRAPH-9F64 -->
<map code="0x9f92" name="glyph00005"/><!-- CJK UNIFIED IDEOGRAPH-9F92 -->
<map code="0x9fa4" name="glyph00002"/><!-- CJK UNIFIED IDEOGRAPH-9FA4 -->
<map code="0x9fa5" name="glyph00006"/><!-- CJK UNIFIED IDEOGRAPH-9FA5 -->
</cmap_format_4>
<cmap_format_12 platformID="0" platEncID="4" format="12" reserved="0" length="136" language="0" nGroups="10">
<map code="0x9476" name="glyph00009"/><!-- CJK UNIFIED IDEOGRAPH-9476 -->
<map code="0x958f" name="glyph00007"/><!-- CJK UNIFIED IDEOGRAPH-958F -->
<map code="0x993c" name="glyph00008"/><!-- CJK UNIFIED IDEOGRAPH-993C -->
<map code="0x9a4b" name="glyph00004"/><!-- CJK UNIFIED IDEOGRAPH-9A4B -->
<map code="0x9e3a" name="glyph00010"/><!-- CJK UNIFIED IDEOGRAPH-9E3A -->
<map code="0x9ea3" name="glyph00001"/><!-- CJK UNIFIED IDEOGRAPH-9EA3 -->
<map code="0x9f64" name="glyph00003"/><!-- CJK UNIFIED IDEOGRAPH-9F64 -->
<map code="0x9f92" name="glyph00005"/><!-- CJK UNIFIED IDEOGRAPH-9F92 -->
<map code="0x9fa4" name="glyph00002"/><!-- CJK UNIFIED IDEOGRAPH-9FA4 -->
<map code="0x9fa5" name="glyph00006"/><!-- CJK UNIFIED IDEOGRAPH-9FA5 -->
</cmap_format_12>
<cmap_format_0 platformID="1" platEncID="0" language="0">
</cmap_format_0>
<cmap_format_4 platformID="3" platEncID="1" language="0">
<map code="0x9476" name="glyph00009"/><!-- CJK UNIFIED IDEOGRAPH-9476 -->
<map code="0x958f" name="glyph00007"/><!-- CJK UNIFIED IDEOGRAPH-958F -->
<map code="0x993c" name="glyph00008"/><!-- CJK UNIFIED IDEOGRAPH-993C -->
<map code="0x9a4b" name="glyph00004"/><!-- CJK UNIFIED IDEOGRAPH-9A4B -->
<map code="0x9e3a" name="glyph00010"/><!-- CJK UNIFIED IDEOGRAPH-9E3A -->
<map code="0x9ea3" name="glyph00001"/><!-- CJK UNIFIED IDEOGRAPH-9EA3 -->
<map code="0x9f64" name="glyph00003"/><!-- CJK UNIFIED IDEOGRAPH-9F64 -->
<map code="0x9f92" name="glyph00005"/><!-- CJK UNIFIED IDEOGRAPH-9F92 -->
<map code="0x9fa4" name="glyph00002"/><!-- CJK UNIFIED IDEOGRAPH-9FA4 -->
<map code="0x9fa5" name="glyph00006"/><!-- CJK UNIFIED IDEOGRAPH-9FA5 -->
</cmap_format_4>
<cmap_format_12 platformID="3" platEncID="10" format="12" reserved="0" length="136" language="0" nGroups="10">
<map code="0x9476" name="glyph00009"/><!-- CJK UNIFIED IDEOGRAPH-9476 -->
<map code="0x958f" name="glyph00007"/><!-- CJK UNIFIED IDEOGRAPH-958F -->
<map code="0x993c" name="glyph00008"/><!-- CJK UNIFIED IDEOGRAPH-993C -->
<map code="0x9a4b" name="glyph00004"/><!-- CJK UNIFIED IDEOGRAPH-9A4B -->
<map code="0x9e3a" name="glyph00010"/><!-- CJK UNIFIED IDEOGRAPH-9E3A -->
<map code="0x9ea3" name="glyph00001"/><!-- CJK UNIFIED IDEOGRAPH-9EA3 -->
<map code="0x9f64" name="glyph00003"/><!-- CJK UNIFIED IDEOGRAPH-9F64 -->
<map code="0x9f92" name="glyph00005"/><!-- CJK UNIFIED IDEOGRAPH-9F92 -->
<map code="0x9fa4" name="glyph00002"/><!-- CJK UNIFIED IDEOGRAPH-9FA4 -->
<map code="0x9fa5" name="glyph00006"/><!-- CJK UNIFIED IDEOGRAPH-9FA5 -->
</cmap_format_12>
</cmap>5、查看加密字体的编码：
print(fanti[0].encode('unicode-escape'))
#输出结果
b'\\u993c'6、查看与code对应的name中的最后一个数字：减一，然后即为加密后的数字。本文为700.