- 4 -
7.7 in 运算子 ........................................................................................................................79
7.8 A find 函数 ....................................................................................................................80
7.9 循环及参数 ......................................................................................................................81
7.10 选择性参数...................................................................................................................81
7.11 string 模块.......................................................................................................................82
7.12 字符的分类...................................................................................................................83
7.13 字符串格式化...............................................................................................................84
7.14 索引...............................................................................................................................86
7.15 练习...............................................................................................................................87
8 案例研究： Catch .....................................................................................................................91
8.1 起步 ..................................................................................................................................91
8.2 用 while 移动球 ............................................................................................................91
8.3 程度的调整 ......................................................................................................................92
8.4 使球弹回 ..........................................................................................................................93
8.5 break 陈述 .......................................................................................................................93
8.6 响应键盘 ..........................................................................................................................94
8.7 检查碰撞 ..........................................................................................................................95
8.8 组合这些片段 ..................................................................................................................96
8.9 显示文字 ..........................................................................................................................97
8.10 抽象化...........................................................................................................................98
8.11 术语 ................................................................................................................................101
8.12 练习.............................................................................................................................102
8.13 专题： pong.py..........................................................................................................102
9 Tuple .........................................................................................................................................104
9.1 可变性与 tuple..............................................................................................................104
9.2 Tuple 指派.....................................................................................................................105
9.3 Tuple 做为传回值.........................................................................................................106
9.4 随机数字 ........................................................................................................................106
9.5 随机数字列表 ................................................................................................................107
9.6 计算 ................................................................................................................................108
9.7 许多分区 ........................................................................................................................109
9.8 一个单程的解决方法 ....................................................................................................111
9.9 术语 ................................................................................................................................112
10 缺少 .......................................................................................................................................114
11 档案和例外 ...........................................................................................................................115
11.1 文字文件 ........................................................................................................................117
11.2 写入变数 ........................................................................................................................119
11.3 目录 ................................................................................................................................121
11.4 腌制 ................................................................................................................................122
11.5 例外 ................................................................................................................................123
11.6 术语 ................................................................................................................................126
12 类别与对象 ...........................................................................................................................128
12.1 使用者设定的复合型态.............................................................................................128
12.2 属性.............................................................................................................................129
12.3 以实例作为自变量.....................................................................................................130
12.4 相同性.........................................................................................................................130
