控制台打印的数据展开后发生变化

代码web var obj = {}; obj.a = 1; console.log(obj); obj.b = 2; console.log(obj); 为何会出现这个问题呢？svg 鼠标移到感叹号上：Value below was evaluted just nowcode 解决方法：打印时把对象克隆一份。xml

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