字符串（String）、数字(Number NAN字符串转换数字失败)、布尔(Boolean)、数组(Array)、对象(Object)、空（Null）、未定义（Undefined）。
<form>
???<input type="text" id="user">
???<input type="password" id="pwd">
</form>
???<input type="button" value="提交">
<script src="{% static ‘/dist/js/jquery-3.2.1.js‘ %}"></script>
<script>
{# ???<!--parse只能解符合json格式的字符串转换成js对象(也是json对象）-->#}
{# ???var ret=JSON.parse(‘{"name":"alex"}‘)#}
{# ???console.log(ret)#}
{# ???var ret=JSON.parse(‘[11,22,33,333]‘)#}
{# ???console.log(ret)#}
{# ???//讲js对象转换成符合json格式的json字符串#}
{# ???console.log(JSON.stringify({name:"alex"}))#}
{# ???console.log(JSON.stringify({name:undefined}))#}
???$(‘input[type="button"]‘).click(function () {
???????$.ajaxSetup({
???????????data: {csrfmiddlewaretoken: ‘{{ csrf_token }}‘ },
???????});
???????$.ajax({
???????????url:‘/app01/test/‘,
???????????type:‘POST‘,
???????????data:{"username":$(‘#user‘).val(),‘password‘:‘123‘}, ??//只要是一个json格式的数据都行{"username":$(‘#user‘).val(),‘password‘:‘123‘}
???????????success:function (data) {
???????????????console.log(JSON.parse(data))
???????????}
???????})
???})
</script>
def tp1(request):
???return ?render(request,‘test.html‘)
def test(request):
???‘‘‘ajax使用‘‘‘
???import json,time
???time.sleep(5)
???print(request.method)
???data=json.dumps({‘status‘:True})
???# username = request.GET.get(‘username‘)
???# password = request.GET.get(‘password‘)
???username=request.POST.get(‘username‘)
???password=request.POST.get(‘password‘)
???print(‘@@@@@@@‘,username,password)
???#返回json到前端
???return HttpResponse(data)
ajax和json ?js数据类型和操作
原文地址：http://www.cnblogs.com/tiantao36/p/7500122.html