{"returnCode":"0","resultCode":"0","amount":1.00} $param= {"returnCode":"0","resultCode":"0","amount":1.00} ; $param=json_decode($param,true); defau...
the speed of querying directly on the client is very fast, but the speed in the code is much slower, and the amount of data is about 1 million . this is the query code: List<String> result = new ArrayList<>(); String sql = "SE...
In the results column, there is an arra (3) on the left side of , and there is a number 2 in front of it. Does that indicate that the result has been output twice? The test.html:22 also appears twice on the right side of . Excuse me, how do you expla...
now the requirement is to add an image anywhere on the pdf, and the front end of the location of the image will be passed over. but how to put this picture on pdf. it doesn t feel good to try several libraries on github. existing PDF is stored on o...
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client index.js import React from react ; import ReactDOM from react-dom ; import . index.css ; import App from . App ; import { BrowserRouter as Router, Route, Switch } from react-router-dom import registerServiceWorker from . r...