小编zep*_*hor的帖子

任何机构都可以帮助我分析错误堆栈：

Traceback (most recent call last):
  File "/usr/local/lib/python2.7/site-packages/tornado/web.py", line 1144, in _when_complete
    if result.result() is not None:
  File "/usr/local/lib/python2.7/site-packages/tornado/concurrent.py", line 129, in result
    raise_exc_info(self.__exc_info)
  File "/usr/local/lib/python2.7/site-packages/tornado/stack_context.py", line 302, in wrapped
    ret = fn(*args, **kwargs)
  File "/usr/local/lib/python2.7/site-packages/tornado/gen.py", line 550, in inner
    self.set_result(key, result)
  File "/usr/local/lib/python2.7/site-packages/tornado/gen.py", line 476, in set_result
    self.run()
  File "/usr/local/lib/python2.7/site-packages/tornado/gen.py", line 505, in run
    yielded = self.gen.throw(*exc_info)
  File "get_image.py", line 53, in async_fetch
    yield _f
  File "/usr/local/lib/python2.7/site-packages/tornado/gen.py", line 496, in run
    next = self.yield_point.get_result()
  File "/usr/local/lib/python2.7/site-packages/tornado/gen.py", line 395, in …

一些jquery代码如:

$("#buy_price").blur(function(){
    price_num;
});

$("#buy_num").blur(function(){
    price_num;
});

function price_num() {
    var price = $("#buy_price").val();
    var num = $("#buy_num").val();
    $("#buy_result").html(price*num);
};

任何人都能告诉我它是否正确吗？