def now(a):
print('2017-09-24')
print(a)
now("liuyinghui")
print(now.__name__)
print(sys.path)
std = St("liuyinghui", 100)
std.score = 85
std.Print()
print(std)
print(St)
print(std.GetGrade())
f = open("d:/hello.txt", 'rb')
string1 = f.readline()
print((string1))
string2 = str(string1)
print((string2))
f.close()
with open("d:/hello.txt", 'r') as f:
string3 = f.read()
print(string3)
with open("d:/hello.txt", 'a') as f:
flag = f.writable()
string3 = f.write("\n刘颖慧，你好！！")
print(string3)
