Python Flask Jinja表示法返回html内容而不是html标记

我的html模板中的jinja符号：

<table border="1" class="dataframe table table-sm table-hover">
 ...
  {% for a in REC %}
    <tr>
    <td>{{ a[0] }}</td>
    <td>{{ a[1] }}</td>
    <td><input type="password" value="{{ a[2] }}" id="myInput" class="receipts"></td>
    <td>{{ a[3] }}</td>
    <td>{{ a[4] }}</td>
    ...
...
</table>

@app.route('/<string:_id>/rec')
def rec(_id):
    mydb = mysql.connector.connect(host="...",user="...",passwd="...")
    mycursor = mydb.cursor()
    mycursor.execute("SELECT * FROM Receipts ORDER BY Date;")
    REC =  mycursor.fetchall()
    mydb.close()
    return render_template('two.html',REC=REC,_id=_id)

非常感谢

使用

safe

Ex:

<table border="1" class="dataframe table table-sm table-hover">
 ...
  {% for a in REC %}
    <tr>
    <td>{{ a[0] }}</td>
    <td>{{ a[1] }}</td>
    <td><input type="password" value="{{ a[2] }}" id="myInput" class="receipts"></td>
    <td>{{ a[3] }}</td>
    <td>{{ a[4]|safe }}</td>
    ...
...
</table>

...
{REC%中的a的%s}
{{a[0]}
{{a[1]}
{{a[3]}
{{a[4]| safe}
...
...

使用

safe

Ex:

<table border="1" class="dataframe table table-sm table-hover">
 ...
  {% for a in REC %}
    <tr>
    <td>{{ a[0] }}</td>
    <td>{{ a[1] }}</td>
    <td><input type="password" value="{{ a[2] }}" id="myInput" class="receipts"></td>
    <td>{{ a[3] }}</td>
    <td>{{ a[4]|safe }}</td>
    ...
...
</table>

...
{REC%中的a的%s}
{{a[0]}
{{a[1]}
{{a[3]}
{{a[4]| safe}
...
...