Python实现全角与半角相互转换

待我称王封你为后i 2022-01-29 03:51 447阅读 0赞

全角与半角转换在处理汉语语料中会经常出现，这里分别说明汉字、数字、字母的unicode编码范围。以及全角与半角的转换方法。最后给出wiki上全角和半角的编码对照表。这里Python需要用Python3版本。

### 汉字的判断 ###

汉字的unicode编码范围 u4e00 到 u9fa5。

def is_chinese(uchar):
        """判断一个unicode是否是汉字"""
        if uchar >= u'\u4e00' and uchar<=u'\u9fa5':
            return True
        else:
            return False

### 数字0-9的判断 ###

数字的unicode编码范围根据全角和半角，有两个不同区域，半角数字 u0030 到 u0039，全角数字 uff10 到 uff19。

def is_number(uchar):
        """判断一个unicode是否是半角数字"""
        if uchar >= u'\u0030' and uchar<=u'\u0039':
            return True
        else:
            return False
        
    def is_Qnumber(uchar):
        """判断一个unicode是否是全角数字"""
        if uchar >= u'\uff10' and uchar <= u'\uff19':
            return True
        else:
            return False

### 大小写字母判断 ###

字母的unicode编码根据字母大小写，以及全角和半角共有四个区域。  
半角大写字母：u0041 - u005a ，半角小写字母：u0061 - u007a ；  
全角大写字母：uff21 - uff3a ， 全角小写字母：uff41 - uff5a 。

def is_alphabet(uchar):
        """判断一个unicode是否是半角英文字母"""
        if (uchar >= u'\u0041' and uchar <= u'\u005a') or (uchar >= u'\u0061' and uchar <= u'\u007a'):
            return True
        else:
            return False
    
    def is_Qalphabet(uchar):
        """判断一个unicode是否是全角英文字母"""
        if (uchar >= u'\uff21' and uchar <= u'\uff3a') or (uchar >= u'\uff41' and uchar <= u'\uff5a'):
            return True
        else:
            return False

### 非汉字和数字字母的判断 ###

判断除汉字、数字0-9、字母之外的字符。

def is_other(uchar):
        """判断是否非汉字，数字和英文字符"""
        if not (is_chinese(uchar) or is_number(uchar) or is_alphabet(uchar)):
            return True
        else:
            return False

### 全角和半角的转换 ###

全角半角转换需要用到上面的数字、字母等判断。

1.  所有半角转全角，不是半角范围直接返回，空格半角特殊单独处理，其它半角和全角对应公式：半角 = 全角 - 0xfee0

def B2Q(uchar):
        """单个字符 半角转全角"""
        inside_code = ord(uchar)
        if inside_code < 0x0020 or inside_code > 0x7e: # 不是半角字符就返回原来的字符
            return uchar 
        if inside_code == 0x0020: # 除了空格其他的全角半角的公式为: 半角 = 全角 - 0xfee0
            inside_code = 0x3000
        else:
            inside_code += 0xfee0
        return chr(inside_code)

1.  所有全角转半角，和前面正好相反，公式对应：全角 = 半角 + 0xfee0

def Q2B(uchar):
        """单个字符 全角转半角"""
        inside_code = ord(uchar)
        if inside_code == 0x3000:
            inside_code = 0x0020
        else:
            inside_code -= 0xfee0
        if inside_code < 0x0020 or inside_code > 0x7e: #转完之后不是半角字符返回原来的字符
            return uchar
        return chr(inside_code)

1.  把整个字符串全角转半角，也可以只转部分如数字和字母

def stringQ2B(ustring):
        """把字符串全角转半角"""
        return "".join([Q2B(uchar) for uchar in ustring])
    
    def stringpartQ2B(ustring):
        """把字符串中数字和字母全角转半角"""
        return "".join([Q2B(uchar) if is_Qnumber(uchar) or is_Qalphabet(uchar) else uchar for uchar in ustring])

测试上面的全角半角转换。

text = "电影《２０１２》讲述了２０１２年１２月２１日的世界末日，主人公Ｊａｃｋ以及世界各国人民挣扎求生的经历，灾难面前，尽现人间百态。"
    
    print("text原文：", text, sep="\n", end="\n")
    text1 = stringQ2B(text)
    print("全角转半角：", text1, sep="\n", end="\n")
    text2 = stringpartQ2B(text)
    print("数字字母全角转半角：", text2, sep="\n", end="\n")

结果如下，只转数字字母与全部转是有区别的：  
![在这里插入图片描述][20190520223926892.png]

### 附全角和半角编码对应表 ###

1.  ASCII内字符的全角和半角，包括数字0-9、大小写字母、标点符号等。

<table> 
 <thead> 
  <tr> 
   <th>ASCII</th> 
   <th>全角字符</th> 
   <th>Unicode</th> 
   <th>半角字符</th> 
   <th>Unicode</th> 
  </tr> 
 </thead> 
 <tbody> 
  <tr> 
   <td>0x20</td> 
   <td>"　"</td> 
   <td>U+3000</td> 
   <td>" "</td> 
   <td>U+0020</td> 
  </tr> 
  <tr> 
   <td>0x21</td> 
   <td>！</td> 
   <td>U+FF01</td> 
   <td>!</td> 
   <td>U+0021</td> 
  </tr> 
  <tr> 
   <td>0x22</td> 
   <td>＂</td> 
   <td>U+FF02</td> 
   <td>"</td> 
   <td>U+0022</td> 
  </tr> 
  <tr> 
   <td>0x23</td> 
   <td>＃</td> 
   <td>U+FF03</td> 
   <td>#</td> 
   <td>U+0023</td> 
  </tr> 
  <tr> 
   <td>0x24</td> 
   <td>＄</td> 
   <td>U+FF04</td> 
   <td>$</td> 
   <td>U+0024</td> 
  </tr> 
  <tr> 
   <td>0x25</td> 
   <td>％</td> 
   <td>U+FF05</td> 
   <td>%</td> 
   <td>U+0025</td> 
  </tr> 
  <tr> 
   <td>0x26</td> 
   <td>＆</td> 
   <td>U+FF06</td> 
   <td>&amp;</td> 
   <td>U+0026</td> 
  </tr> 
  <tr> 
   <td>0x27</td> 
   <td>＇</td> 
   <td>U+FF07</td> 
   <td>’</td> 
   <td>U+0027</td> 
  </tr> 
  <tr> 
   <td>0x28</td> 
   <td>（</td> 
   <td>U+FF08</td> 
   <td>(</td> 
   <td>U+0028</td> 
  </tr> 
  <tr> 
   <td>0x29</td> 
   <td>）</td> 
   <td>U+FF09</td> 
   <td>)</td> 
   <td>U+0029</td> 
  </tr> 
  <tr> 
   <td>0x2A</td> 
   <td>＊</td> 
   <td>U+FF0A</td> 
   <td>*</td> 
   <td>U+002A</td> 
  </tr> 
  <tr> 
   <td>0x2B</td> 
   <td>＋</td> 
   <td>U+FF0B</td> 
   <td>+</td> 
   <td>U+002B</td> 
  </tr> 
  <tr> 
   <td>0x2C</td> 
   <td>，</td> 
   <td>U+FF0C</td> 
   <td>,</td> 
   <td>U+002C</td> 
  </tr> 
  <tr> 
   <td>0x2D</td> 
   <td>－</td> 
   <td>U+FF0D</td> 
   <td>-</td> 
   <td>U+002D</td> 
  </tr> 
  <tr> 
   <td>0x2E</td> 
   <td>．</td> 
   <td>U+FF0E</td> 
   <td>.</td> 
   <td>U+002E</td> 
  </tr> 
  <tr> 
   <td>0x2F</td> 
   <td>／</td> 
   <td>U+FF0F</td> 
   <td>/</td> 
   <td>U+002F</td> 
  </tr> 
  <tr> 
   <td>0x30</td> 
   <td>０</td> 
   <td>U+FF10</td> 
   <td>0</td> 
   <td>U+0030</td> 
  </tr> 
  <tr> 
   <td>0x31</td> 
   <td>１</td> 
   <td>U+FF11</td> 
   <td>1</td> 
   <td>U+0031</td> 
  </tr> 
  <tr> 
   <td>0x32</td> 
   <td>２</td> 
   <td>U+FF12</td> 
   <td>2</td> 
   <td>U+0032</td> 
  </tr> 
  <tr> 
   <td>0x33</td> 
   <td>３</td> 
   <td>U+FF13</td> 
   <td>3</td> 
   <td>U+0033</td> 
  </tr> 
  <tr> 
   <td>0x34</td> 
   <td>４</td> 
   <td>U+FF14</td> 
   <td>4</td> 
   <td>U+0034</td> 
  </tr> 
  <tr> 
   <td>0x35</td> 
   <td>５</td> 
   <td>U+FF15</td> 
   <td>5</td> 
   <td>U+0035</td> 
  </tr> 
  <tr> 
   <td>0x36</td> 
   <td>６</td> 
   <td>U+FF16</td> 
   <td>6</td> 
   <td>U+0036</td> 
  </tr> 
  <tr> 
   <td>0x37</td> 
   <td>７</td> 
   <td>U+FF17</td> 
   <td>7</td> 
   <td>U+0037</td> 
  </tr> 
  <tr> 
   <td>0x38</td> 
   <td>８</td> 
   <td>U+FF18</td> 
   <td>8</td> 
   <td>U+0038</td> 
  </tr> 
  <tr> 
   <td>0x39</td> 
   <td>９</td> 
   <td>U+FF19</td> 
   <td>9</td> 
   <td>U+0039</td> 
  </tr> 
  <tr> 
   <td>0x3A</td> 
   <td>：</td> 
   <td>U+FF1A</td> 
   <td>:</td> 
   <td>U+003A</td> 
  </tr> 
  <tr> 
   <td>0x3B</td> 
   <td>；</td> 
   <td>U+FF1B</td> 
   <td>;</td> 
   <td>U+003B</td> 
  </tr> 
  <tr> 
   <td>0x3C</td> 
   <td>＜</td> 
   <td>U+FF1C</td> 
   <td>&lt;</td> 
   <td>U+003C</td> 
  </tr> 
  <tr> 
   <td>0x3D</td> 
   <td>＝</td> 
   <td>U+FF1D</td> 
   <td>=</td> 
   <td>U+003D</td> 
  </tr> 
  <tr> 
   <td>0x3E</td> 
   <td>＞</td> 
   <td>U+FF1E</td> 
   <td>&gt;</td> 
   <td>U+003E</td> 
  </tr> 
  <tr> 
   <td>0x3F</td> 
   <td>？</td> 
   <td>U+FF1F</td> 
   <td>?</td> 
   <td>U+003F</td> 
  </tr> 
  <tr> 
   <td>0x40</td> 
   <td>＠</td> 
   <td>U+FF20</td> 
   <td>@</td> 
   <td>U+0040</td> 
  </tr> 
  <tr> 
   <td>0x41</td> 
   <td>Ａ</td> 
   <td>U+FF21</td> 
   <td>A</td> 
   <td>U+0041</td> 
  </tr> 
  <tr> 
   <td>0x42</td> 
   <td>Ｂ</td> 
   <td>U+FF22</td> 
   <td>B</td> 
   <td>U+0042</td> 
  </tr> 
  <tr> 
   <td>0x43</td> 
   <td>Ｃ</td> 
   <td>U+FF23</td> 
   <td>C</td> 
   <td>U+0043</td> 
  </tr> 
  <tr> 
   <td>0x44</td> 
   <td>Ｄ</td> 
   <td>U+FF24</td> 
   <td>D</td> 
   <td>U+0044</td> 
  </tr> 
  <tr> 
   <td>0x45</td> 
   <td>Ｅ</td> 
   <td>U+FF25</td> 
   <td>E</td> 
   <td>U+0045</td> 
  </tr> 
  <tr> 
   <td>0x46</td> 
   <td>Ｆ</td> 
   <td>U+FF26</td> 
   <td>F</td> 
   <td>U+0046</td> 
  </tr> 
  <tr> 
   <td>0x47</td> 
   <td>Ｇ</td> 
   <td>U+FF27</td> 
   <td>G</td> 
   <td>U+0047</td> 
  </tr> 
  <tr> 
   <td>0x48</td> 
   <td>Ｈ</td> 
   <td>U+FF28</td> 
   <td>H</td> 
   <td>U+0048</td> 
  </tr> 
  <tr> 
   <td>0x49</td> 
   <td>Ｉ</td> 
   <td>U+FF29</td> 
   <td>I</td> 
   <td>U+0049</td> 
  </tr> 
  <tr> 
   <td>0x4A</td> 
   <td>Ｊ</td> 
   <td>U+FF2A</td> 
   <td>J</td> 
   <td>U+004A</td> 
  </tr> 
  <tr> 
   <td>0x4B</td> 
   <td>Ｋ</td> 
   <td>U+FF2B</td> 
   <td>K</td> 
   <td>U+004B</td> 
  </tr> 
  <tr> 
   <td>0x4C</td> 
   <td>Ｌ</td> 
   <td>U+FF2C</td> 
   <td>L</td> 
   <td>U+004C</td> 
  </tr> 
  <tr> 
   <td>0x4D</td> 
   <td>Ｍ</td> 
   <td>U+FF2D</td> 
   <td>M</td> 
   <td>U+004D</td> 
  </tr> 
  <tr> 
   <td>0x4E</td> 
   <td>Ｎ</td> 
   <td>U+FF2E</td> 
   <td>N</td> 
   <td>U+004E</td> 
  </tr> 
  <tr> 
   <td>0x4F</td> 
   <td>Ｏ</td> 
   <td>U+FF2F</td> 
   <td>O</td> 
   <td>U+004F</td> 
  </tr> 
  <tr> 
   <td>0x50</td> 
   <td>Ｐ</td> 
   <td>U+FF30</td> 
   <td>P</td> 
   <td>U+0050</td> 
  </tr> 
  <tr> 
   <td>0x51</td> 
   <td>Ｑ</td> 
   <td>U+FF31</td> 
   <td>Q</td> 
   <td>U+0051</td> 
  </tr> 
  <tr> 
   <td>0x52</td> 
   <td>Ｒ</td> 
   <td>U+FF32</td> 
   <td>R</td> 
   <td>U+0052</td> 
  </tr> 
  <tr> 
   <td>0x53</td> 
   <td>Ｓ</td> 
   <td>U+FF33</td> 
   <td>S</td> 
   <td>U+0053</td> 
  </tr> 
  <tr> 
   <td>0x54</td> 
   <td>Ｔ</td> 
   <td>U+FF34</td> 
   <td>T</td> 
   <td>U+0054</td> 
  </tr> 
  <tr> 
   <td>0x55</td> 
   <td>Ｕ</td> 
   <td>U+FF35</td> 
   <td>U</td> 
   <td>U+0055</td> 
  </tr> 
  <tr> 
   <td>0x56</td> 
   <td>Ｖ</td> 
   <td>U+FF36</td> 
   <td>V</td> 
   <td>U+0056</td> 
  </tr> 
  <tr> 
   <td>0x57</td> 
   <td>Ｗ</td> 
   <td>U+FF37</td> 
   <td>W</td> 
   <td>U+0057</td> 
  </tr> 
  <tr> 
   <td>0x58</td> 
   <td>Ｘ</td> 
   <td>U+FF38</td> 
   <td>X</td> 
   <td>U+0058</td> 
  </tr> 
  <tr> 
   <td>0x59</td> 
   <td>Ｙ</td> 
   <td>U+FF39</td> 
   <td>Y</td> 
   <td>U+0059</td> 
  </tr> 
  <tr> 
   <td>0x5A</td> 
   <td>Ｚ</td> 
   <td>U+FF3A</td> 
   <td>Z</td> 
   <td>U+005A</td> 
  </tr> 
  <tr> 
   <td>0x5B</td> 
   <td>［</td> 
   <td>U+FF3B</td> 
   <td>[</td> 
   <td>U+005B</td> 
  </tr> 
  <tr> 
   <td>0x5C</td> 
   <td>＼</td> 
   <td>U+FF3C</td> 
   <td>\</td> 
   <td>U+005C</td> 
  </tr> 
  <tr> 
   <td>0x5D</td> 
   <td>］</td> 
   <td>U+FF3D</td> 
   <td>]</td> 
   <td>U+005D</td> 
  </tr> 
  <tr> 
   <td>0x5E</td> 
   <td>＾</td> 
   <td>U+FF3E</td> 
   <td>^</td> 
   <td>U+005E</td> 
  </tr> 
  <tr> 
   <td>0x5F</td> 
   <td>＿</td> 
   <td>U+FF3F</td> 
   <td>_</td> 
   <td>U+005F</td> 
  </tr> 
  <tr> 
   <td>0x60</td> 
   <td>｀</td> 
   <td>U+FF40</td> 
   <td>`</td> 
   <td>U+0060</td> 
  </tr> 
  <tr> 
   <td>0x61</td> 
   <td>ａ</td> 
   <td>U+FF41</td> 
   <td>a</td> 
   <td>U+0061</td> 
  </tr> 
  <tr> 
   <td>0x62</td> 
   <td>ｂ</td> 
   <td>U+FF42</td> 
   <td>b</td> 
   <td>U+0062</td> 
  </tr> 
  <tr> 
   <td>0x63</td> 
   <td>ｃ</td> 
   <td>U+FF43</td> 
   <td>c</td> 
   <td>U+0063</td> 
  </tr> 
  <tr> 
   <td>0x64</td> 
   <td>ｄ</td> 
   <td>U+FF44</td> 
   <td>d</td> 
   <td>U+0064</td> 
  </tr> 
  <tr> 
   <td>0x65</td> 
   <td>ｅ</td> 
   <td>U+FF45</td> 
   <td>e</td> 
   <td>U+0065</td> 
  </tr> 
  <tr> 
   <td>0x66</td> 
   <td>ｆ</td> 
   <td>U+FF46</td> 
   <td>f</td> 
   <td>U+0066</td> 
  </tr> 
  <tr> 
   <td>0x67</td> 
   <td>ｇ</td> 
   <td>U+FF47</td> 
   <td>g</td> 
   <td>U+0067</td> 
  </tr> 
  <tr> 
   <td>0x68</td> 
   <td>ｈ</td> 
   <td>U+FF48</td> 
   <td>h</td> 
   <td>U+0068</td> 
  </tr> 
  <tr> 
   <td>0x69</td> 
   <td>ｉ</td> 
   <td>U+FF49</td> 
   <td>i</td> 
   <td>U+0069</td> 
  </tr> 
  <tr> 
   <td>0x6A</td> 
   <td>ｊ</td> 
   <td>U+FF4A</td> 
   <td>j</td> 
   <td>U+006A</td> 
  </tr> 
  <tr> 
   <td>0x6B</td> 
   <td>ｋ</td> 
   <td>U+FF4B</td> 
   <td>k</td> 
   <td>U+006B</td> 
  </tr> 
  <tr> 
   <td>0x6C</td> 
   <td>ｌ</td> 
   <td>U+FF4C</td> 
   <td>l</td> 
   <td>U+006C</td> 
  </tr> 
  <tr> 
   <td>0x6D</td> 
   <td>ｍ</td> 
   <td>U+FF4D</td> 
   <td>m</td> 
   <td>U+006D</td> 
  </tr> 
  <tr> 
   <td>0x6E</td> 
   <td>ｎ</td> 
   <td>U+FF4E</td> 
   <td>n</td> 
   <td>U+006E</td> 
  </tr> 
  <tr> 
   <td>0x6F</td> 
   <td>ｏ</td> 
   <td>U+FF4F</td> 
   <td>o</td> 
   <td>U+006F</td> 
  </tr> 
  <tr> 
   <td>0x70</td> 
   <td>ｐ</td> 
   <td>U+FF50</td> 
   <td>p</td> 
   <td>U+0070</td> 
  </tr> 
  <tr> 
   <td>0x71</td> 
   <td>ｑ</td> 
   <td>U+FF51</td> 
   <td>q</td> 
   <td>U+0071</td> 
  </tr> 
  <tr> 
   <td>0x72</td> 
   <td>ｒ</td> 
   <td>U+FF52</td> 
   <td>r</td> 
   <td>U+0072</td> 
  </tr> 
  <tr> 
   <td>0x73</td> 
   <td>ｓ</td> 
   <td>U+FF53</td> 
   <td>s</td> 
   <td>U+0073</td> 
  </tr> 
  <tr> 
   <td>0x74</td> 
   <td>ｔ</td> 
   <td>U+FF54</td> 
   <td>t</td> 
   <td>U+0074</td> 
  </tr> 
  <tr> 
   <td>0x75</td> 
   <td>ｕ</td> 
   <td>U+FF55</td> 
   <td>u</td> 
   <td>U+0075</td> 
  </tr> 
  <tr> 
   <td>0x76</td> 
   <td>ｖ</td> 
   <td>U+FF56</td> 
   <td>v</td> 
   <td>U+0076</td> 
  </tr> 
  <tr> 
   <td>0x77</td> 
   <td>ｗ</td> 
   <td>U+FF57</td> 
   <td>w</td> 
   <td>U+0077</td> 
  </tr> 
  <tr> 
   <td>0x78</td> 
   <td>ｘ</td> 
   <td>U+FF58</td> 
   <td>x</td> 
   <td>U+0078</td> 
  </tr> 
  <tr> 
   <td>0x79</td> 
   <td>ｙ</td> 
   <td>U+FF59</td> 
   <td>y</td> 
   <td>U+0079</td> 
  </tr> 
  <tr> 
   <td>0x7A</td> 
   <td>ｚ</td> 
   <td>U+FF5A</td> 
   <td>z</td> 
   <td>U+007A</td> 
  </tr> 
  <tr> 
   <td>0x7B</td> 
   <td>｛</td> 
   <td>U+FF5B</td> 
   <td>{ </td> 
   <td>U+007B</td> 
  </tr> 
  <tr> 
   <td>0x7C</td> 
   <td>｜</td> 
   <td>U+FF5C</td> 
   <td>|</td> 
   <td>U+007C</td> 
  </tr> 
  <tr> 
   <td>0x7D</td> 
   <td>｝</td> 
   <td>U+FF5D</td> 
   <td>}</td> 
   <td>U+007D</td> 
  </tr> 
  <tr> 
   <td>0x7E</td> 
   <td>～</td> 
   <td>U+FF5E</td> 
   <td>~</td> 
   <td>U+007E</td> 
  </tr> 
 </tbody> 
</table>

1.  其它特殊字符的全角和半角

<table> 
 <thead> 
  <tr> 
   <th>半角字符</th> 
   <th>Unicode</th> 
   <th>全角字符</th> 
   <th>Unicode</th> 
  </tr> 
 </thead> 
 <tbody> 
  <tr> 
   <td>⦅</td> 
   <td>U+2985</td> 
   <td>｟</td> 
   <td>U+FF5F</td> 
  </tr> 
  <tr> 
   <td>⦆</td> 
   <td>U+2986</td> 
   <td>｠</td> 
   <td>U+FF60</td> 
  </tr> 
  <tr> 
   <td>¢</td> 
   <td>U+00A2</td> 
   <td>￠</td> 
   <td>U+FFE0</td> 
  </tr> 
  <tr> 
   <td>£</td> 
   <td>U+00A3</td> 
   <td>￡</td> 
   <td>U+FFE1</td> 
  </tr> 
  <tr> 
   <td>¬</td> 
   <td>U+00AC</td> 
   <td>￢</td> 
   <td>U+FFE2</td> 
  </tr> 
  <tr> 
   <td>¯</td> 
   <td>U+00AF</td> 
   <td>￣</td> 
   <td>U+FFE3</td> 
  </tr> 
  <tr> 
   <td>¦</td> 
   <td>U+00A6</td> 
   <td>￤</td> 
   <td>U+FFE4</td> 
  </tr> 
  <tr> 
   <td>¥</td> 
   <td>U+00A5</td> 
   <td>￥</td> 
   <td>U+FFE5</td> 
  </tr> 
  <tr> 
   <td>₩</td> 
   <td>U+20A9</td> 
   <td>￦</td> 
   <td>U+FFE6</td> 
  </tr> 
  <tr> 
   <td>￨</td> 
   <td>U+FFE8</td> 
   <td>│</td> 
   <td>U+2502</td> 
  </tr> 
  <tr> 
   <td>￩</td> 
   <td>U+FFE9</td> 
   <td>←</td> 
   <td>U+2190</td> 
  </tr> 
  <tr> 
   <td>￪</td> 
   <td>U+FFEA</td> 
   <td>↑</td> 
   <td>U+2191</td> 
  </tr> 
  <tr> 
   <td>￫</td> 
   <td>U+FFEB</td> 
   <td>→</td> 
   <td>U+2192</td> 
  </tr> 
  <tr> 
   <td>￬</td> 
   <td>U+FFEC</td> 
   <td>↓</td> 
   <td>U+2193</td> 
  </tr> 
  <tr> 
   <td>￭</td> 
   <td>U+FFED</td> 
   <td>■</td> 
   <td>U+25A0</td> 
  </tr> 
  <tr> 
   <td>￮</td> 
   <td>U+FFEE</td> 
   <td>○</td> 
   <td>U+25CB</td> 
  </tr> 
 </tbody> 
</table>

### 参考 ###

\[1\]. [https://zh.wikipedia.org/wiki/全形和半形][https_zh.wikipedia.org_wiki]  
\[2\]. [http://www.voidcn.com/article/p-njiniuhl-nu.html][http_www.voidcn.com_article_p-njiniuhl-nu.html]

[20190520223926892.png]: /images/20220129/09b430558dea4e0eb4901c2b712a05d6.png
[https_zh.wikipedia.org_wiki]: https://zh.wikipedia.org/wiki/%E5%85%A8%E5%BD%A2%E5%92%8C%E5%8D%8A%E5%BD%A2
[http_www.voidcn.com_article_p-njiniuhl-nu.html]: http://www.voidcn.com/article/p-njiniuhl-nu.html