Go - Functions - 1

• Declare func name(parameter-list) return-list {...}
• Parameter list type can be declared only once if types are the same
• func test(a string, b string, c string)
• func test(a,b,c string)
• func test(a,b,c string,d,e,f int)
  
• Return list can be named as well, don't need "return" statement if variable name is the same, called bare return。bare return is hard to under
• If return list type are the same, can be declared only once
  
• Can declare parameter name as _ to indicate the parameter is unused (But I'm not sure when should use it)
  
• Go doesn't support default parameter value
• Go doesn't support specify parameter value by name