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// 这是我调试时的默认格式 fmt.Printf("%+v\n\n", order) // 当我需要知道这个变量的有关结构时我会用这种方法 fmt.Printf("%#v\n\n", order) // 我很少使用这些 fmt.Printf("%v\n\n", order) fmt.Printf("%s\n\n", order) fmt.Printf("%T\n", order)
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