我正在使用flask和子进程制作一个在线python编译器，其中用户在html页面上编写一些代码，然后单击“运行”按钮，它将在后台处理并在html页面背面显示结果。到目前为止，它只能打印“ Hello World”之类的常规程序。现在我希望该用户也可以提供输入以执行一些任务。我不知道该怎么做。如果有人帮助我，我会很高兴。 这是代码：
import subprocess
from flask import Flask,render_template,request
from werkzeug import secure_filename
app = Flask(__name__)
@app.route('/')
def run_1():
return render_template('compiler_html.html')
@app.route('/',methods=["POST"])
def done():
with open("code_check.py","w") as file:
data=str(request.form.get("code"))
file.write(data)
proc = subprocess.Popen(["python", "code_check.py"], stdout=subprocess.PIPE, shell=True ,
universal_newlines=True,stdin=subprocess.PIPE,stderr=subprocess.STDOUT)
cd = str(proc.communicate()[0])
print(cd)
fill='File "code_check.py",'
color = " "
if fill in cd:
color="red"
else:
color="#267326"
return render_template('compiler_html.html',show=cd,color=color,return_code=data)
@app.route('/get',methods=["POST"])
def local_file():
f = request.files['cfile']
f.save("static/files/"+secure_filename(f.filename))
print(f.filename)
proc = subprocess.Popen(["python", "static/files/"+(f.filename)], stdout=subprocess.PIPE, shell=True ,
universal_newlines=True,stdin=subprocess.PIPE,stderr=subprocess.STDOUT)
cd = str(proc.communicate()[0])
#######################################################
with open('static/files/'+(f.filename), "r") as fh:
data=fh.read()
#####################################################
print(cd)
fill=' File "static/files/'
color=""
if fill in cd:
color="red"
else:
color="#267326"
return render_template('compiler_html.html',show=cd,color=color,return_code=data)
if __name__ == '__main__':
app.run('localhost',5000)
html脚本：：
<!DOCTYPE html>
<html>
<head>
<title>TEST COMPILER</title>
<link rel="stylesheet" type="text/css" href="/static/compiler.css">
</head>
<!--START BODY ############################################################-->
<body background="/static/project_bg_wallpaper.jpg" onload="setbackground()">
<!--HEADER DIV#########################################################-->
<div class="header_div">
<h1 align="center"> PYTHON COMPILER</h1>
</div>
<!--LOCAL FILES AREA ################################################-->
<form method="POST" action="{{url_for('local_file')}}" enctype = "multipart/form-data">
<label class="custom-file-upload">
<input name="cfile" id="check" type="file" class="cfile" required >
Choose Local File
</label>
<input type="submit" class="cfile" onclick="fun_check()" value="Run local Program">
</form>
<br>
<br>
<!-- INPUT AREA ####################################################-->
<div>
<div class="input_div">
<form method="POST" action="{{url_for('done')}}">
<textarea class="input_area" name="code" id="online_code" rows="16" cols="55" placeholder="print('Hello World')" required>{{return_code}}</textarea>
<br><br>
<div class="button_div">
<input type="submit" onload="setbackground()" onclick="check_online_code()" id="run_button" value="RUN" class="run_button">
</div>
</form>
</div>
<!--OUTPUT DIV ####################################################-->
<div style="color:{{color}}; font-weight: 550;" class="output_div">
<pre>{{show}}</pre>
</div>
<!--JAVASCRIPT #########################################################-->
<script>
function setbackground()
{
window.setTimeout( "setbackground()", 200); // 200 milliseconds delay
date = new Date;
s = date.getSeconds();
//var index = Math.round(Math.random() * 2);
var textcolor;
var ColorValue ; //= "FFFFFF"; // default color - white (index = 0)
if (s%2==0)
{
ColorValue = "#267326";
textcolor="#ffffff";
}
else
{
ColorValue = "Transparent";
textcolor="#267326";
}
var btn = document.getElementsByTagName("input")[2];
btn.style.backgroundColor = ColorValue;
btn.style.color=textcolor;
//document.getElementById("run_button").style.color=textcolor;
//document.getElementById("run_button")[0].style.color=textcolor;
//setTimeout('date_time("'+id+'");','1000');
return true;
}
/* FOR TAB IN TEXTAREA #########################################*/
var textareas = document.getElementsByTagName('textarea');
var count = textareas.length;
for(var i=0;i<count;i++)
{
textareas[i].onkeydown = function(e)
{
if(e.keyCode==9 || e.which==9)
{
e.preventDefault();
var s = this.selectionStart;
this.value = this.value.substring(0,this.selectionStart) + "\t" + this.value.substring(this.selectionEnd);
this.selectionEnd = s+1;
}
}
}
function fun_check()
{
var check_value=document.getElementById('check').value;
if(check_value==null || check_value=="")
{
alert("Select a file first !")
}
}
function check_online_code()
{
var check_value=document.getElementById("online_code").value;
if(check_value==null || check_value=="")
{
alert("put some code in code box please!!")
}
}
</script>
</body>
</html>