货币1和货币2不能选择相同

src/views/ecw/exchangeRate/index.vue

@@ -97,13 +97,13 @@
       <el-form ref="form" :model="form" :rules="rules" label-width="100px">
         <el-form-item :label="$t('币种1')" prop="sourceCurrencyId">
           <el-select  v-model="form.sourceCurrencyId"  :placeholder="$t('请选择币种')">
-            <el-option  :disabled="dict.status === 1" @click.native="() => form.sourceCurrencyCode = dict.fuhao"   v-for="dict in currencyList"
+            <el-option  :disabled="dict.status === 1 || form.targetCurrencyId === dict.id" @click.native="() => form.sourceCurrencyCode = dict.fuhao"   v-for="dict in currencyList"
                        :key="dict.id" :label="$l(dict,'title') + dict.fuhao" :value="dict.id" />
           </el-select>
         </el-form-item>
         <el-form-item :label="$t('币种2')" prop="targetCurrencyId">
           <el-select v-model="form.targetCurrencyId" :placeholder="$t('请选择币种')">
-            <el-option  :disabled="dict.status === 1"  @click.native="() => form.targetCurrencyCode = dict.fuhao" v-for="dict in currencyList"
+            <el-option  :disabled="dict.status === 1 || form.sourceCurrencyId === dict.id"  @click.native="() => form.targetCurrencyCode = dict.fuhao" v-for="dict in currencyList"
                        :key="dict.id" :label="$l(dict,'title') + dict.fuhao" :value="dict.id" />
           </el-select>
         </el-form-item>