输入法（纯手写）

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def main(p2hzfile,profile):
    p2hz = {}
    ngramprob = {}
    pyinit(p2hz , p2hzfile)
    ngraminit(ngramprob , profile)
    while 1:
        pinyin = input("请输入")
        if  pinyin == 'q':
            break
        ret = IME(pinyin , p2hz , ngramprob)
        print(ret)
def pyinit(p2hz,file):
    f = open("file")
    for line in f:
        line = line.strip()
        line = line.split(' ')
        for i in range(1,len(line)):
            if not p2hz.get(line[0]):
                p2hz[line[0]] = []
            p2hz[line[0]].append(line[i])
    p2hz['E'] = []
    p2hz['B'] = []
    p2hz['E'].append('E')
    p2hz['B'].append('B')
    f.close()
def ngraminit(ngramprob , file):
    f = open('file')
    for line in f:
        line = line.strip()
        line = line.split(' ')
        ngramprob[line[0]] = float(line[1])
    f.close()
def IME(pinyin , p2hz , prob):
    Lattice = []
    if BuildLattice(pinyin , Lattice , p2hz) == 0:
        return
    SearchLattice(Lattice , prob)
    ret = BackLattice(Lattice)
    return ret
def BuildLattice(py , shuju , p2hz):
    list = py.split(' ')
    list.insert(0,'B')
    list.append('E')
    for zi in list:
        zis = []
        getzis(zi , p2hz , zis)
        column = []
        for i in zis:
            x = []
            x.append(i)
            x.append(-100)
            x.append(0)
            column.append(x)
        shuju.append(column)
    return 1
def getzis(zi , p2hz , zis):
    if p2hz.get(zi):
        for i in p2hz[zi]:
            zis.append(i)
def SearchLattice(shuju , probfile):
    for i in range(1,len(shuju)):
        for j in range(len(shuju[i])):
            prob = 0.0
            max = -1000
            for k in range(len(shuju[i-1])):
                if i-1>0:
                    hz = shuju[i-1][k][0] + shuju[i][j][0]
                else :
                    hz = shuju[i][j][0]
                prob = getprob(hz,probfile) + shuju[i-1][k][1]
                if prob > max:
                    shuju[i][j][2] = k
                    max = prob
            shuju[i][j][1] = max
def getprob(zi,prob):
    ret = -100.0
    if prob.get(zi):
        ret = prob[zi]
    return ret
def BackLattice(shuju):
    unit = []
    no = len(shuju) -1
    unit = shuju[no][len(shuju[no])-1]
    relarray = []
    while no > 0:
        if unit[0] != 'E':
            relarray.insert(0,unit[0])
        unit = shuju[no-1][unit[2]]
        no -= 1
    ret = "".join(relarray)
    return ret

花了一个半小时吧，还是不太熟练

本文标签： 输入法