The console has no content to display after eclipse configuration Pydev

Today, according to the online article configured Pydev, after the successful configuration to try to write a HelloWorld, but the console does not output results, but with the idle operation is able to output, on the internet to find a lot of posts, as if they have not encountered this problem, had to find their own way. Then use the cmd command line to tune, found that the command line of Python began to error, a look at the Python installation directory, Python.exe file icon can not be recognized. Unload load immediately, reload the command line back to normal, return to eclipse and run HelloWorld, the console can also display. Configure the Pydev process did not move the Python installation path, why this problem, only slowly looking for.