1

src/xt_pages/medicalScheduling/index.vue

                         :value="item.value">
                     </el-option>
                 </el-select>
-                <el-button type="text" style="margin:0 10px;">&lt;上一周(22)</el-button>
-                <div class="dateBox">2019.11.25-2019.12.01(47)</div>
-                <el-button type="text" style="margin:0 10px;">下一周(24)&gt;</el-button>
+                <el-button @click="lastclick" type="text" style="margin:0 10px;">&lt;上一周({{ weekNum - 1 }})</el-button>
+                <div class="dateBox">{{ weekDayArr[0] }}-{{ weekDayArr[6] }}({{ weekNum }})</div>
+                <el-button @click="nextclick" type="text" style="margin:0 10px;">下一周({{ weekNum + 1 }})&gt;</el-button>
             </div>
             <div style="display:flex;justify-content: space-between;">
                 <div style="width: 70%">
                 name: '王小虎',
                 address: '上海市普陀区金沙江路 1516 弄'
             }],
-            isChecked:true
+            isChecked:true,
+            weekNum:'',
+            weekDayArr:[],
+            todayDate:'',
+            clen:7,
+            nowYear: new Date().getFullYear()
 
         }
     },
+    created(){
+        let year = new Date().getFullYear()
+        let month = new Date().getMonth() + 1
+        let date = new Date().getDate()
+        this.weekNum = this.getYearWeek(year,month,date)
+
+        this.todayDate=this.formatDate(new Date())
+        this.setDate(new Date())
+        
+    },
     methods:{
         search(){},
         toPrint(){
                 path: '/medicalScheduling/schedule/print',
                 // query: { date: date }
             })
+        },
+        formatDate(date){      
+          var year = date.getFullYear()+'.'       
+          var month = (date.getMonth()+1)+'.';
+          var day = date.getDate();
+          return year+month+day
+        }, 
+        addDate(date,n){        
+          date.setDate(date.getDate()+n);        
+          return date;
+        },  
+        //
+        setDate(date){           
+            var week = date.getDay()-1;
+            date = this.addDate(date,week*-1);
+            this.currentFirstDate = new Date(date);
+            for(var i = 0;i<this.clen; i++){     
+                this.weekDayArr.push(this.formatDate(i==0 ? date : this.addDate(date,1)))
+            }     
+            console.log(333333333,this.weekDayArr)           
+        },
+        //上一周 
+        lastclick(){
+            this.weekDayArr=[]
+            this.setDate(this.addDate(this.currentFirstDate,-7));   
+            this.weekNum = this.weekNum - 1
+            if(this.weekNum - 1 == 0){
+                let year = this.nowYear - 1
+                let month = 12
+                let date = 31
+                this.weekNum = this.getYearWeek(year,month,date)
+                this.nowYear = this.nowYear - 1
+            }
+        },
+        //下一周
+        nextclick(){ 
+            this.weekDayArr=[]                
+            this.setDate(this.addDate(this.currentFirstDate,7));
+            this.weekNum = this.weekNum + 1
+            if(this.weekNum + 1 == 54){
+                let year = this.nowYear + 1
+                let month = 1
+                let date = 1
+                this.weekNum = this.getYearWeek(year,month,date)
+                this.nowYear = this.nowYear + 1
+                console.log('year',year)
+                console.log('month',month)
+                console.log('date',date)
+                console.log(this.weekNum)
+                console.log('执行')
+            }
+        },
+
+        getYearWeek(year,month,date){
+            /*  
+                dateNow是当前日期 
+                dateFirst是当年第一天  
+                dataNumber是当前日期是今年第多少天  
+                用dataNumber + 当前年的第一天的周差距的和在除以7就是本年第几周  
+            */      
+            let dateNow = new Date(year, parseInt(month) - 1, date);
+            let dateFirst = new Date(year, 0, 1);
+            let dataNumber = Math.round((dateNow.valueOf() - dateFirst.valueOf()) / 86400000);
+            console.log(222222222222,Math.ceil((dataNumber + ((dateFirst.getDay() + 1) - 1)) / 7))
+            return Math.ceil((dataNumber + ((dateFirst.getDay() + 1) - 1)) / 7);        
         }
+
     }
 }
 </script>