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1.rem.js内容
! function(n) {
var e = n.document,
t = e.documentElement,
i = 720,
d = i / 100,
o = "orientationchange" in n ? "orientationchange" : "resize",
a = function() {
var n = t.clientWidth || 320;
n > 720 && (n = 720);
t.style.fontSize = n / d + "px"
};
e.addEventListener && (n.addEventListener(o, a, !1), e.addEventListener("DOMContentLoaded", a, !1))
}(window);
2.项目目录
3.在main.js 中引入
4.直接使用