W3School TIY Editor
W3School 在线教程
改变方向
暗黑模式
python_ref_string_isidentifier_2.py:
a = "MyFolder" b = "Demo002" c = "2bring" d = "my demo" print(a.isidentifier()) print(b.isidentifier()) print(c.isidentifier()) print(d.isidentifier())