简单描述程序功能:python+flask
1.停用词为csv文件
2.源文件为txt文件
3.文本处理,将原文件中出现的停用词去除
4.根据用户web 表单输入,检索出包含用户输入参数的句子
代码实现:
1.文件读取,分词,源文件词频统计
python 读取 西班牙语文本编码: encoding='ISO-8859-1'
1 #csv 文件读取,此处编码为西班牙语
2 def csvfile():
3 file_path = os.path.join(upload_path, "SpanishStopWords.csv")
4 with open(file_path,'r',encoding='ISO-8859-1') as f:
5 reader = csv.reader(f)
6 fieldnames = next(reader)#获取数据的第一列,作为后续要转为字典的键名 生成器,next方法获取
7 # print(fieldnames)
8 data1=[]
9 csv_reader = csv.DictReader(f,fieldnames=fieldnames) #self._fieldnames = fieldnames # list of keys for the dict 以list的形式存放键名
10 for row in csv_reader:
11 dic1={}
12 for k,v in row.items():
13 dic1[k]=v
14 data1.append(dic1)
15 return data1
16 #txt文件读取
17 def eachcount():
18 file_path = os.path.join(upload_path, "Alamo.txt")
19 txt = open(file_path, 'r', encoding='ISO-8859-1').read()
20 #分词
21 txt = txt.replace(',', ' ').replace('.', ' ')
22 txt = txt.split()
23 counts = {} # 定义一个空字典类型
24 print(txt)
25 for word in txt:
26 counts[word] = counts.get(word, 0) + 1 # 获取word当前有几个,如果word不存在则为0
27 items = list(counts.items())
28 # 对一个列表按照键值对的两个元素的第二个元素进行排序,由大到小的倒排,词频排序
29 items.sort(key=lambda x: x[1], reverse=False)
30 return items
2.显示在原文件中出现的所有停用词
#显示在源文件中出现过的所有停用词
@application.route('/listsearch/', methods=['GET', 'POST'])
def listsearch():
file_path = os.path.join(upload_path, "SpanishStopWords.csv")
txt = open(file_path, 'r', encoding='ISO-8859-1').read()
# txt = txt.replace(',', ' ').replace('.', ' ')
txt = txt.split()
filelist=txt
# filelist=csvfile()
filelist2=docu2()
# wordlist=["my","name","boy","chirs","Dave"]
result=[]
result2=[]
# for j in wordlist:
# for i in filelist:
# if i[0]== j :
# result.append(i)
for j in filelist:
for i in filelist2:
if j== i :
result2.append(j)
return render_template('index.html',result2=result2)
前端代码展现:
<form action="/listsearch" method="get" enctype="multipart/form-data">
<button type="submit" value="submit">search</button>
<p>result</p>
{% for line2 in result2 %}
<p>{{ line2}}</p>
{% endfor %}
</form>
3.显示原文件中所有含有数字的句子
1 @application.route('/test1/', methods=['GET', 'POST'])
2 def test1():
3 file_path = os.path.join(upload_path, "Alamo.txt")
4 txt = open(file_path, 'r', encoding='ISO-8859-1').read()
5 # txt = txt.replace(',', ' ').replace('.', ' ')
6 txt = txt.split('.')
7 filelist=txt
8 result2=[]
9 for j in filelist:
10 #使用正则表达式匹配数字
11 if re.match('.*[0-9].*', j) != None:
12 result2.append(j)
13 return render_template('index.html',result9=result2)
4.用户web 表单输入参数,根据用户输入,显示源文件中包含用户输入参数的句子。
1 @application.route('/test2/', methods=['GET', 'POST'])
2 def test2():
3 word = request.args.get("word10")
4 file_path = os.path.join(upload_path, "Alamo.txt")
5 txt = open(file_path, 'r', encoding='ISO-8859-1').read()
6 # txt = txt.replace(',', ' ').replace('.', ' ')
7 txt = txt.split('.')
8 filelist=txt
9 result=[]
10 result2=[]
11 for j in filelist:
12 if word in j :
13 result2.append(j)
14 return render_template('index.html',result10=result2)
前端代码展现:
1 <form action="/test1" method="get" enctype="multipart/form-data">
2 <button type="submit" value="submit">submit</button>
3 {% for li in result9 %}
4 <p>{{ li}}</p>
5
6 {% endfor %}
7 </form>
8
9 <form action="/test2" method="get" enctype="multipart/form-data">
11 <input type="text" placeholder="word" name="word10">
13 <button type="submit" value="submit">submit</button>
14 {% for li in result10 %}
15 <p>{{ li}}</p>
16
17 {% endfor %}
18 </form>