vue $set问题

Question

官方api解释参数传递（target，key ，value）假如想更改data:{ attribute1 : "val1" }  下的attribute1 这个该怎么写

Answer 1

确定是？this.$set(this.$data,"attribute1 ",newVal);

Answer 2

this.attribute1 = xxx

Answer 3

额 应该是

this.$set(this.$data,"attribute1 ",newVal);