IVIEW FORM验证 验证数字

https://github.com/yiminghe/async-validator

Amount: [{
	  required: true,
	  type: 'number',
	  message: '优惠券金额必须不能为空',
	  trigger: 'blur'
	},
	{
	  type: 'number',
	  trigger: 'blur',
	  validator: (rule, value, callback) => {
		// 模拟异步验证效果
		setTimeout(() => {
		  if (value <= 0) {
			callback(new Error('优惠券金额必须大于0'));
		  } else {
			callback();
		  }
		}, 100);
	  }
	}]