如何捕获ElementNotFound等错误？

WebDriver throws errors when commands cannot be completed – e.g. not being able to click on an element which is obscured by another element. If you need to retry these actions,try using 07001. If you would just like to catch the error,do so like this

@H_403_13@

适应您的问题：

elm.isPresent().then(function(present) {
  /* no webdriver js errors here */}
  if (present) {
    /* element exists */
  } else {
    /* element doesn't exist */
  },function(err) {
  /* error handling here,i.e. element doesn't if got ElementNotFound
     but,eventually and less likely,other issues will fall in here too like
     NoSuchWindowsError or ElementStaleError etc...
  */
});