Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you have been placed in read-only mode.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
通过auto&结构化绑定的u_2可以改变s_1.a的值，为什么decltype结果是int而不是int&呢
通过auto&结构化绑定的u_2可以改变s_1.a的值，为什么decltype结果是int而不是int&呢