Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "/usr/lib/python2.7/py_compile.py", line 117, in compile
    raise py_exc
py_compile.PyCompileError:   File "/in/foo.py", line 1
    a=int(input(“请输入总秒数（一个大于等于零的正整数）：”)
                ^
SyntaxError: invalid syntax