https://mail.python.org/archives/list/python-dev@python.org/thread/SQC2FTLFV5A7DV7RCEAR2I2IKJKGK7W3/


与Scala中的match神似，两个语言越长越像了：

# Python 3.10 Only
class Point:
    x: int
    y: int

def where_is(point):
    match point:
        case Point(x=0, y=0):
            print("Origin")
        case Point(x=0, y=y):
            print(f"Y={y}")
        case Point(x=x, y=0):
            print(f"X={x}")
        case Point():
            print("Somewhere else")
        case _:
            print("Not a point")

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