摘要： Classes__author__ = 'andy'def scope_test(): def do_local(): spam = "local spam" def do_nonlocal(): nonlocal spam spam = "no... 阅读全文

摘要： Errors and ExceptionsSyntax ErrorsExceptionsHandling Exceptionswhile True:... try:... x = int(input("Please enter a number: "))... ... 阅读全文

摘要： ModulersA module is a file containing Python definitions and statements. The file name is the module name with the suffix.pyappended. Within a module,... 阅读全文