恐慌与 log.Fatalln() 的结果有何不同？

从 log.Fatalln() 上的文档：

func Fatalln(v ...interface{}) Fatalln 等价于 Println()，然后调用 os.Exit(1)。

Fatalln 的 source code：

   310  // Fatalln is equivalent to Println() followed by a call to os.Exit(1).
   311  func Fatalln(v ...interface{}) {
   312      std.Output(2, fmt.Sprintln(v...))
   313      os.Exit(1)
   314  }

似乎主要区别在于错误是否可恢复（因为您可以恢复恐慌） - 这些之间有什么更显着的不同吗？

Panic 的界面 definition 是：

   215  // The panic built-in function stops normal execution of the current
   216  // goroutine. When a function F calls panic, normal execution of F stops
   217  // immediately. Any functions whose execution was deferred by F are run in
   218  // the usual way, and then F returns to its caller. To the caller G, the
   219  // invocation of F then behaves like a call to panic, terminating G's
   220  // execution and running any deferred functions. This continues until all
   221  // functions in the executing goroutine have stopped, in reverse order. At
   222  // that point, the program is terminated and the error condition is reported,
   223  // including the value of the argument to panic. This termination sequence
   224  // is called panicking and can be controlled by the built-in function
   225  // recover.
   226  func panic(v interface{})

看起来恐慌没有返回任何东西。

这是主要区别吗？否则，假设恐慌没有恢复，它们似乎在应用程序中执行相同的功能。