换背景，印花single模式交互修改

src/views/HomeView/library.vue

@@ -113,7 +113,11 @@
 											<div :class="['header_operate_item' , 'fontSize',selectImgList.length>0?'active':'']" @click="showRenameModal(selectImgList,'batch')">{{ $t('LibraryPage.Rename') }}</div>
 										</div>
 										<div class="content_search_block">
-											<input class="search_input" :placeholder="$t('LibraryPage.inputContent1')" v-model="searchPictureName"  @keydown.enter="getLibraryList('')">
+											<input 
+											class="search_input" 
+											:placeholder="$t('LibraryPage.inputContent1')" 
+											v-model="searchPictureName"  
+											@keydown.enter="getLibraryList('')">
 											<div class="search_cascader">
 												<el-cascader 
 													:options="options" 
@@ -237,7 +241,7 @@
 													:maxlength='inputShow?0:9999' 
 													@keydown.enter="getgenerate"  
 													@click="inputFocus()"
-													:placeholder="$t('LibraryPage.inputContent2')" 
+													:placeholder="(scene?.value == 'Slogan' && selectCode == 'Printboard')?isSloganHint:$t('LibraryPage.inputContent2')"
 													v-model="captionGeneration">
 												<i class="fi fi-br-upload" v-show="!isTextarea && upload.level1Type !== 'Moodboard' && scene?.value != 'Slogan' && scene?.value != 'Logo'">
 													<a-upload
@@ -510,6 +514,7 @@ export default defineComponent({
 		let isTextarea = ref(false)
 		let workspace:any = ref({})
 		let generateLevel2:any = {}
+		let isSloganHint:any = ref('')
         return {
             menuList,
             selectImgList,
@@ -554,6 +559,7 @@ export default defineComponent({
 			isTextarea,
 			workspace,
 			generateLevel2,
+			isSloganHint,
         }
     },
 	data(this_) {
@@ -587,6 +593,17 @@ export default defineComponent({
 			// 	}
 			// }, 500);
 		},
+		scene:{
+			handler(newVal,oldVal){
+				if(this.selectCode == 'Printboard' && newVal.value == 'Slogan'){
+					let sloganType = ['Blue and Yellow Starry Night','Green Cthulhu','Red and yellow fire style','Cyberpunk style','City skyline buildings','Red maple leaves','Golden Sunflower','Emerald Jungle Canopy','Pink Sakura Blossom']
+					var randomNumber = Math.floor(Math.random() * sloganType.length);
+					this.isSloganHint = sloganType[randomNumber]
+				}else{
+					this.isSloganHint = ''
+				}
+			}
+		}
 	},
     async mounted(){
 		let userInfo:any = getCookie("userInfo")
@@ -1229,7 +1246,6 @@ export default defineComponent({
 				}
 			}
 			
-			let sloganType = ['Blue and Yellow Starry Night','Green Cthulhu','Red and yellow fire style','Cyberpunk style','City skyline buildings','Red maple leaves','Golden Sunflower','Emerald Jungle Canopy','Pink Sakura Blossom']
 			let sloganText = ''
 			let arr = ["Painting Style","Illustration Style","Real Style"]
 			sloganText = this.captionGeneration
@@ -1241,8 +1257,7 @@ export default defineComponent({
 			}else if(this.selectCode == "Printboard"){
 				level2Type = this.scene?.value
 				if(level2Type == 'Slogan' && this.captionGeneration == ''){
-					var randomNumber = Math.floor(Math.random() * sloganType.length);
-					sloganText = sloganType[randomNumber]
+					sloganText = this.isSloganHint
 				}else if(level2Type == 'Pattern'){
 					sloganText = `${arr[this.printModel.num-1]},${sloganText}`
 				}