我绘制了一个折线图,该线下面的区域看起来是彩色的,使其看起来像一个区域图.代码如下所示
<!DOCTYPE html>
<html>
<head>
<style type="text/css">
body {
font: 12px Arial;
}
path {
stroke-width: 1;
stroke : 1;
}
.axis path,.axis line {
fill: none;
stroke: grey;
stroke-width: 1;
shape-rendering: crispEdges;
}
</style>
<script type="text/javascript" src="d3.min.js"></script>
<script type="text/javascript" src="jquery-1.8.0.js"></script>
<meta charset="ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
<script type="text/javascript">
var baseSvg = d3.select("body")
.append("svg")
.attr("height",800)
.attr("width",800)
.append("g")
.attr("transform","translate(50,50)");
$.ajax({
method : 'GET',
url:"URL", //Called my URL here
success:function(data){
var res = data.d.results;
/* res.forEach(function(d){
console.log(new Date(parseInt(d.DATE_SQL.substring(6))));
}) */
buildTrend(res); …javascript html5 visualization information-visualization d3.js
这是我对 CPU 和线程的基本理解（天真！）。处理器每个内核可以运行一个线程。
我的笔记本电脑上的系统信息如下所示
处理器 Intel(R) Core(TM) i7-8650U CPU @ 1.90GHz, 2112 Mhz, 4 Core(s), 8 Logical Processor(s) **可以并行运行 8 个线程 * *
为了验证我的理解，我创建了一个 Spring Boot（嵌入式 tomcat）来处理每个请求
@GetMapping("/ping")
public String ping(@RequestParam String id) throws InterruptedException {
System.out.println(MessageFormat.format("The request id is {0}", id));
int i = Integer.parseInt(id);
long now = System.currentTimeMillis();
long period = 5000L;
long later = System.currentTimeMillis();
if (i % 2 == 1) {
while (later - now <= period) {
later = System.currentTimeMillis();
}
}
return PING_SUCCESSFUL;
} …