Question

我正在制作一个从数据库中获取discgolf数据的ircbot。我想在字典中存储可能的命令：

function_dictionary = {"get PLAYERS best round from COURSE on YEAR" : 
get_best_round,
"get PLAYERS THINGS from COURSE on YEAR" : get_things}

玩家，课程等将存储在列表中。

PLAYERS = ["name1", "name2", "name3"]
COURSES = ["course1", "course2", "course3"]
THINGS = ["birdies", "pars", "bogeys"]
YEARS = [2015, 2016, 2017]

如果所有参数都是由用户提供的，我可以替换参数并保存原始值：

userinput = "get name1 best round from course1 on 2016"
for p in PLAYERS:
    if p in userinput:
        player = p 
        userinput = userinput.replace(p, "PLAYERS")
for c in COURSES:
    if c in userinput:
        course = c 
        userinput = userinput.replace(c, "COURSE")
for y in YEARS:
    if y in userinput:
        year = y 
        userinput = userinput.replace(y, "YEAR")

然后搜索命令是否在字典中：

for key in function_dictionary:
    if key in userinput:
        func_to_run = function_dictionary[key]

func_to_run(player, course, year)

如果用户输入中缺少一个或多个参数，我将如何工作？

userinput1 = "get name1 best round"

应触发：

get_best_round("name1", course = "all", year = "all")

和

userinput2 = "get best round from course1"

应触发：

get_best_round(name = "all", "course1", year = "all")

和

userinput3 = "get birdies on 2016"

shoud trigger

get_things(name = "all", "birdies", course = "all", 2016)

Answer 1

只需添加条款即可表明如果在userinput中未选择播放器/课程/年份，则默认为您选择的值：

pset = False
for p in PLAYERS:
    if p in userinput:
        pset=True
        player = p 
        userinput = userinput.replace(p, "PLAYERS")
if pset==False:
     player= #value for any player

并重复课程和年份。

Answer 2

你可以使用一些旗帜。

例如：

for (var i=0; i < names.length; i++) {
    console.log ("I know someone called"+" "+names[i]+"."); 
}

然后，您只需检查布尔值并调用适当的方法。

但是，我不会采用这种方法。它似乎有足够的失败点。也许搜索PLAYERS_inserted = False for p in PLAYERS: if p in userinput: player = p userinput = userinput.replace(p, "PLAYERS") PLAYERS_inserted = True COURSES_inserted = False for c in COURSES: if c in userinput: course = c userinput = userinput.replace(c, "COURSE") COURSES_inserted = True YEARS_inserted = False for y in YEARS: if y in userinput: year = y userinput = userinput.replace(y, "YEAR") YEAR_inserted = True和/或构建一个更具体的界面。

用户输入中的可选参数

2 个答案: