This is a question related to python indication.

The Python indication through the visual studio code is displayed 1) 1) -> 2) - - - - There are two. What is the difference between these two marks? -- When running -print (years), there is no mistake in the indication, but the code does not work due to an indication error. So it was a code that was copied and pasted, so I typed it myself and ran it, and it worked then.