1.
<!DOCTYPE html>
<html>
<head>
<title>format</title>
<meta charset="gbk">
</head>
<body>
我爱GH
</body>
<script type="text/javascript">
console.log("log");
console.warn("warning");
console.error("error");
</script>
</html>
2.
<!DOCTYPE html>
<html>
<head>
<title>format</title>
</head>
<body>
hello World
</body>
<script type="text/javascript">
console.log("身高:%dcm,体重:%fkg",188,44.4);
</script>
</html>
3.
<!DOCTYPE html>
<html>
<head>
<title>分组的使用</title>
</head>
<body>
hello World
</body>
<script type="text/javascript">
console.group("1");
console.groupEnd();
console.group("2");
console.log("2.1:我很丑");
console.log("2.2:但是我很温柔");
console.groupEnd();
</script>
</html>
4.
<!DOCTYPE html>
<html>
<head>
<title>类的输出</title>
</head>
<body>
hello World
</body>
<script type="text/javascript">
var info = {
age:20,
interesting:"mobile programing"
};
console.dir(info);
</script>
</html>
5.
<!DOCTYPE html>
<html>
<head>
<title>html元素的打印</title>
</head>
<body>
<div id="bice">
<p>我爱程序设计</p>
</div>
</body>
<script type="text/javascript">
var info = document.getElementById(‘bice‘);
console.dirxml(info);
</script>
</html>
6.
<!DOCTYPE html>
<html>
<head>
<title>assert判断真假</title>
</head>
<body>
<div id="bice">
<p>我爱程序设计</p>
</div>
</body>
<script type="text/javascript">
console.assert( 1 ,"结果为假");
var code = 1024;
console.assert(year == 2048 ,"code不等");
</script>
</html>
7.
<!DOCTYPE html>
<html>
<head>
<title>追踪函数</title>
</head>
<body>
<div id="bice">
<p>我爱程序设计</p>
</div>
</body>
<script type="text/javascript">
function test(a,b){
console.trace();
}
test(1,1);
</script>
</html>
8.
<!DOCTYPE html>
<html>
<head>
<title>计时</title>
</head>
<body>
<div id="bice">
<p>我爱程序设计</p>
</div>
</body>
<script type="text/javascript">
console.time("计时开始");
for(var i=0;i<1000;i++){
for(var j=0;j<1000;j++){}
}
console.timeEnd("计时结束");
</script>
</html>
9.
<!DOCTYPE html>
<html>
<head>
<title>性能分析</title>
</head>
<body>
<div id="bice">
<p>我爱程序设计</p>
</div>
</body>
<script type="text/javascript">
function Test(){
alert("性能测试");
for(var i=0;i<1000;i++){
for (var i = 0; i < 1000; i++) {
for (var i = 0; i < 1000; i++) {}
}
}
}
console.profile(‘性能分析器‘);
Test();
console.profileEnd();
</script>
</html>
时间： 2024-08-09 08:48:56