三元表达式详解

三元表达式
test ? expression1 : expression2

参数
test
任何 Boolean 表达式。

expression1
如果 test 为 true，则返回表达式。可能是逗号表达式。

expression2
如果 test 为 false，则返回表达式。可以使用逗号表达式链接多个表达式。

var cc = true;

这里 表达式1 和表达式2不能同时写成一个字符串，这里需要至少有一个是变量或者两个都是变量，但是变量又不能是json 这种

<template>
  <div>
    <Modal v-model='modal1'>
   
      <Form style="margin-top:30px;" ref="formValidate" :model="formValidate" :rules="ruleValidate" :label-width="80">
        <FormItem label="Name" prop="name">
            <Input v-model="test1?test2:name" placeholder="Enter your name"></Input>
        </FormItem>
        <FormItem label="E-mail" prop="mail">
            <Input v-model="" placeholder="Enter your e-mail"></Input>
        </FormItem>
        <FormItem label="City" prop="city">
            <Select v-model="" placeholder="Select your city">
                <Option value="beijing">New York</Option>
                <Option value="shanghai">London</Option>
                <Option value="shenzhen">Sydney</Option>
            </Select>
        </FormItem>
        <FormItem>
            <Button type="primary" @click="handleSubmit('formValidate')">Submit</Button>
            <Button type="primary" @click="handleReset('formValidate')" style="margin-left: 8px">Reset</Button>
        </FormItem>
    </Form>  
       </Modal>
   <Input v-model="test1?'111':test2" placeholder="Enter your name"></Input>
    <Button type="primary" @click="showModal" style="margin-left: 8px">展示Modal</Button>
  </div>

</template>
<script>
    export default {
        data () {
            return {
              modal1:false,
              test1:true,
              test2:'8888',
                formValidate: {
                   name:'4335435'
                },
               name:'re',
                ruleValidate: {
                    name: [
                        { required: true, message: 'The name cannot be empty', trigger: 'blur' }
                    ],
                    mail: [
                        { required: true, message: 'Mailbox cannot be empty', trigger: 'blur' },
                        { type: 'email', message: 'Incorrect email format', trigger: 'blur' }
                    ],
                    city: [
                        { required: true, message: 'Please select the city', trigger: 'change' }
                    ]
                }
            }
        },
        methods: {
          showModal(){
            this.modal1 = true;
            (this.test1)
          },
            handleSubmit (name) {
              this.test1 = true;
                this.$refs[name].validate((valid) => {
                    if (valid) {
                        this.$('Success!');
                    } else {
                        this.$('Fail!');
                    }
                })
            },
            handleReset (name) {
                this.$refs[name].resetFields();
            }
        }
    }
</script>