(1) +号方式
var htmlSTring
= "<div>"+
"this is a string"+
"</div>";
(2) \方式
var htmlSTring
="<div>\
This is a string.\
</div>"
(3) es6方式
var htmlSTring
= `<div>
This is a string.
</div>`;
es6传变量方式
var b
= "hello world"
var htmlSTring
= `<div>
This is a string: ${b}.
</div>`;
对比总结:
es6方式简洁不容易出错,打印结果有所差别, \ 方式会保留一些空格,es6的字符串模板 ` (在esc键下方)方式会保留换行,还支持传变量
参考:Multiline String Variables in JavaScript