The angular-cli project execution ng serve, shows that the compilation was successful, but why is the browser a blank page?

do I have the wrong environment, Mom? Node and cli have been uninstalled and reinstalled several times, but they are still the same. Sorry, I don"t know how to take screenshots on my phone. I hope those who have encountered similar situations can remind me

.
Feb.28,2021

try ng serve-- open


is still the pit of node-sass. When installing scaffolding with npm, there is a certain chance that this dependency cannot be downloaded because of the wall. In the case of an external network, it is recommended that you use the cnpm, intranet to download the darwin-x64-48_binding.node binary file to the node-sass library of github. When you angular-cli again, the node-sass module can be compiled.

MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1b3826f-2c0e4.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b3826f-2c0e4.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
Need Help?