Optimizing prec process on windows (#33256)

* Optimizing prec process on windows

* fix bug

tools/get_pr_ut.py

@@ -179,7 +179,7 @@ class PRChecker(object):
     def get_comment_of_file(self, f):
         #content = self.repo.get_contents(f.replace(PADDLE_ROOT, ''), 'pull/').decoded_content
         #todo: get file from github
-        with open(f) as fd:
+        with open(f, encoding="utf-8") as fd:
             lines = fd.readlines()
         lineno = 1
         inputs = ''

tools/windows/run_unittests.sh

@@ -195,7 +195,7 @@ if [ ${WITH_GPU:-OFF} == "ON" ];then
     num=$(ctest -N | awk -F ': ' '{print $2}' | sed '/^$/d' | sed '$d' | wc -l)
     echo "Windows 1 card TestCases count is $num"
     if [ ${PRECISION_TEST:-OFF} == "ON" ]; then
-        python ${PADDLE_ROOT}/tools/get_pr_ut.py
+        python ${PADDLE_ROOT}/tools/get_pr_ut.py || echo "Failed to obtain ut_list !"
         if [[ -f "ut_list" ]]; then
             echo "PREC length: "`wc -l ut_list`
             precision_cases=`cat ut_list`