python exit() python test.py 输入输出 print('2\n2') print(1, 2, 3) name = input() print(':', name) 数据类型和变量 # 注释 print(1.23e9) print('I\'m \"OK\"') print(r'\\\t\\') # r''不转义 print('''line1 line2 line3''') # 多行 # True False # and or not print(True or…