如何在微信小程序中使用iconfont

/**app.wxss**/

.container {
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    /* padding: 200rpx 0; */
    box-sizing: border-box;
}

/*********在线字体代码start*********/

@font-face {
    font-family: ‘iconfont‘;
    /* project id 706535 */
    src: url(‘//at.alicdn.com/t/font_706535_gcxl9md3eyj.eot‘);
    src: url(‘//at.alicdn.com/t/font_706535_gcxl9md3eyj.eot?#iefix‘) format(‘embedded-opentype‘), url(‘//at.alicdn.com/t/font_706535_gcxl9md3eyj.woff‘) format(‘woff‘), url(‘//at.alicdn.com/t/font_706535_gcxl9md3eyj.ttf‘) format(‘truetype‘), url(‘//at.alicdn.com/t/font_706535_gcxl9md3eyj.svg#iconfont‘) format(‘svg‘);
}

/*********在线字体代码end*********/

/*********字体文件中的代码start*********/

.iconfont {
    font-family: "iconfont" !important;
    font-size: 16px;
    font-style: normal;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.icon_back::before {
    content: "\e62c";
}

.icon_close::before {
    content: "\e628";
}

.icon_refresh::before {
    content: "\e732";
}

.icon_jiantou_bottom::before {
    content: "\e605"
}

.icon_jiantou_top::before {
    content: "\e733"
}

.icon_bill::before {
    content: "\e627";
}

.icon_edit::before {
    content: "\e63b";
}

.icon_edit_pen::before {
    content: "\e609";
}

.icon_right_jiantou::before {
    content: "\e7a5"
}

/*********字体文件中的代码end*********/