1<svg id="图层_1" data-name="图层 1" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><defs><style>.cls-1{fill:#1a1a1a;}</style></defs><title>上一步</title><path class="cls-1" d="M2.26446,9.6608a.49846.49846,0,0,1-.35141-.84738L4.68948,6.037a.49873.49873,0,0,1,.84987.3539v1.782h11.679a4.96736,4.96736,0,1,1,.08723,9.93434H4.29569a.748.748,0,0,1-.04486-1.49539H17.2183a3.48922,3.48922,0,0,0,.07726-6.95353H2.26446Z"/></svg>