Angular 5 route problem, another page that jumps from one page in any way will be refreshed repeatedly.

there are more than a dozen pages for inexplicable reasons, but there is only one page for uploading files. No matter whether it is route.navigate to any page or routerLink= written directly on the button, the entire page will be refreshed again after jumping to another page. Other pages that have generated loading, for a long time do not have this problem. No reason can be found. The routing configuration is the same and the jump mode is the same. Tested all the pages, the problem will only be in this jump out of the page, but can not find the reason, each jump has a difference is that the address bar after each url will be one more? Number,
for example, I jump to this.router.navigate (["/ form/submit"]); form/submit?, appears at the end of the address bar, then the page will be refreshed for a long time, and then the page is finished, and the address bar is normal form/submit
I don"t know if anyone has the same situation

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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-64f5-1be9b8e-319ae.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1be9b8e-319ae.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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