Python3 while else 循环 Python3 os 模块 Getcwdu 方法 Python3 os 模块 Isatty 方法 Python3 while else 循环 #!/usr/bin/python3 count = 0 while count < 5: print (count, " is less than 5") count = count + 1 else: print (count, " is not less than 5") Python3 os 模块 Getcwdu 方法 Python3 os 模块 Isatty 方法