course = "Python Progamming"
score = 95.5
sentence = f"{course}课程的成绩是{score}分"
print(sentence)
print(type(score))
course_under = course.replace(" ","_")
print(course_under)
count_o = course.count('o')
print("字母o出现的次数:",count_o)
Y291cnNlICA9ICJQeXRob24gUHJvZ2FtbWluZyIKc2NvcmUgPSA5NS41CnNlbnRlbmNlID0gZiJ7Y291cnNlfeivvueoi+eahOaIkOe7qeaYr3tzY29yZX3liIYiCnByaW50KHNlbnRlbmNlKQpwcmludCh0eXBlKHNjb3JlKSkKCmNvdXJzZV91bmRlciA9IGNvdXJzZS5yZXBsYWNlKCIgIiwiXyIpCnByaW50KGNvdXJzZV91bmRlcikKCmNvdW50X28gPSBjb3Vyc2UuY291bnQoJ28nKQpwcmludCgi5a2X5q+Nb+WHuueOsOeahOasoeaVsDoiLGNvdW50X28p