Timothy

方法1.

@app.template_filter('datetimeformat')
def format_datatime(value, format='%Y-%m-%d %H:%M'):
    return value.strftime(format)

方法2.

def format_datatime(value, format='%Y-%m-%d %H:%M'):
    return value.strftime(format)
app.jinja_env.filters['datetimeformat'] = format_datatime

Html:

{{ item | datetimeformat('%Y/%m/%d') }}