https://segmentfault.com/q/1010000002964172 ajax是异步的,所以aa()在执行的时候,return的那个result本身就是空的,在此后的某些秒以后,result才会有赋值.改写可以用callback形式,或者用promise等等 function aa(callback){ var result = []; $.getJSON('js/json.json',function(data){ result = data; callback(result
The FETCH statement positions a cursor on the next row of its result table and assigns the values of that row to target variables. Invocation Although an interactive SQL facility might provide an interface that gives the appearance of interactive exe