bug-735:西医主诊断不应该有值，它来自his

src/views/diagnosis/Prescribing.vue

@@ -292,7 +292,7 @@
               <el-input
                 size="mini"
                 disabled
-                :value="westernDiag"
+                :value="patiensMsg.maindiagnosis.diagnosis"
               ></el-input>
             </div>
           </div>