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							- const prefixCls = 'i-radio';
 - 
 - Component({
 -     externalClasses: ['i-class'],
 -     relations: {
 -         '../radio-group/index': {
 -             type: 'parent'
 -         }
 -     },
 -     properties: {
 -         value: {
 -             type: String,
 -             value: ''
 -         },
 -         checked: {
 -             type: Boolean,
 -             value: false
 -         },
 -         disabled: {
 -             type: Boolean,
 -             value: false
 -         },
 -         color: {
 -             type: String,
 -             value: '#2d8cf0'
 -         },
 -         position: {
 -             type: String,
 -             value: 'left', //left right
 -             observer: 'setPosition'
 -         }
 -     },
 -     data: {
 -         checked: true,
 -         positionCls: `${prefixCls}-radio-left`,
 -     },
 -     attached() {
 -         this.setPosition();
 -     },
 -     methods: {
 -         changeCurrent(current) {
 -             this.setData({ checked: current });
 -         },
 -         radioChange() {
 -             if (this.data.disabled) return;
 -             const item = { current: !this.data.checked, value: this.data.value };
 -             const parent = this.getRelationNodes('../radio-group/index')[0];
 -             parent ? parent.emitEvent(item) : this.triggerEvent('change', item);
 -         },
 -         setPosition() {
 -             this.setData({
 -                 positionCls: this.data.position.indexOf('left') !== -1 ? `${prefixCls}-radio-left` : `${prefixCls}-radio-right`,
 -             });
 -         }
 -     }
 - });
 
 
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