使用js 自带的 document.write 不符合自己的编程习惯，参考网络的html 格式化输出方式修改
https://raw.githubusercontent.com/pislbert/MyJsUtil/master/print/print.js
测试
<body>
<script>
print(1, 2, 3, "hehe", "haha\n")
printf("hehe\nhaha%d\n", 16)
printf("0x%x\n", 15)
println("1", "2")
</script>
<script>
console.println(1, 2, 3, "hehe", "haha")
console.printf("hehe\nhaha%d\n", 16)
console.printf("0x%x\n", 15)
console.println("1", "2")
</script>
</body>
结果如图
![Spring MVC 自学杂记（五） -- SpringMVC与前台的json数据交互[图]](data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACwAAAAAAQABAAACAkQBADs=)