安装引入npminstallvue-esign--save//全局vue2main.jsimportvueEsignfrom'vue-esign'Vue.use(vueEsign)//全局vue3main.jsimport{createApp}from'vue'importAppfrom'./App.vue'importvueEsignfrom'vue-esign'constapp=createApp(App)app.use(vueEsign)//局部importvueEsignfrom'vue-esign'components:{vueEsign}使用清空画板生成图片data(){retur