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                         前端使用vue实现JSON的构造: 
- <Modal title="问题编辑" v-model="showEdit" :closable="false" :mask-closable="false">  
 -     <Form ref="question" :model="question" :rules="ruleValidate">  
 -         <FormItem label="题目类型:" prop="qType">  
 -             <Select v-model="question.qType" class="input-180" placeholder="题目类型" @on-change="changeQType(question)">  
 -                 <Option v-for="d in qTypes" :value="d.value" :key="d.value">{{ d.label }}</Option>  
 -             </Select>  
 -         </FormItem>  
 -         <FormItem label="题目:" prop="title">  
 -             <Input  
 -                    class="input-95-per"  
 -                    v-model="question.title"  
 -                    type="textarea"  
 -                    row="1"  
 -                    placeholder="题目"  
 -                    ></Input>  
 -         </FormItem>  
 -         <FormItem label="选项:">  
 -             <div v-for="(o, i2) in question.options" :key="i2" style="display:flex">  
 -                 <Input class="input-95-per margin-bot-8 margin-right-10" v-model="o.text">  
 -                     <span slot="prepend">{{i2+1}}:</span>  
 -                 </Input>  
 -                 <Button size="small" @click="addOpt(question)" v-if="i2===0">+</Button>  
 -                 <Button size="small" @click="delOpt(question, o)" v-if="i2">-</Button>  
 -                 <Checkbox v-model="o.right">正确答案</Checkbox>  
 -             </div>  
 -         </FormItem>  
 -         <FormItem label="答案解析:">  
 -             <Input  
 -                    class="input-95-per"  
 -                    v-model="question.analysis"  
 -                    type="textarea"  
 -                    row="1"  
 -                    placeholder="答案解析"  
 -                    ></Input>  
 -         </FormItem>  
 -     </Form>  
 -     <div slot="footer">  
 -         <Button type="text" @click="cancelQuestion">取消</Button>  
 -         <Button type="primary" :loading="saveLoading" @click="saveQuestion">保存</Button>  
 -     </div>  
 - </Modal> 
 
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