compound if statement

基本解释

If it finds a match, the corresponding statement (simple or compound) executes.
若发现相符的，就执行对应的语句（简单或复合语句）。
When you type in the if statement and the terminating colon, then press Return (or Enter) on your keyboard, the Python interpreter realizes you have entered a compound statement.
当键入 if 语句和终止的冒号，并按键盘上的回车键时，Python 解释器就知道您输入了一个复合语句。
Accessing, adding items to, and deleting items from a dictionary are all simple operations, and dictionaries can be easily incorporated into compound statements like an if statement or a for loop.
访问、添加和删除 dictionary 中的元素都很简单，而且 dictionary 很容易用于复合语句，比如 if 语句或 for 循环。