state_map = {
1: {
"h": 2,
"default": 5
},
2: {
"a": 3,
"o": 3,
"default": 5
},
3: {
"h": 2,
"!": 4,
"default": 5
},
4: {
"": 4,
"default": 5
}
}
def find_state(state, ch):
if state not in state_map:
raise Exception("Has no such state in state_map")
try:
state = state_map[state].get(ch)
except Exception as e:
state = state_map[state].get("default")
return state
# if else elif 能简化就简化吧,提供一个思路,代码还没有执行过
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