python-translate-翻译模块

from translate import Translator   # 调用模块前提前加载
def yingzhong():
    '''英文转换成中文'''
    zhuanhuanqian= Translator(to_lang='chinese')
    zhuanhuanhou = zhuanhuanqian.translate(b)
    return lll
def zhongying():
    '''中文转换成英文'''
    zhuanhuanqian= Translator(from_lang='chinese', to_lang='english')
    zhuanhuanhou = zhuanhuanqian.translate(b)
    return zhuanhuanhou 
while True:
    a = input("1：中转英：\n"+"2: 英转中：")
    b = input("你所需要转换的内容:")
    if a == '1':
        print(zhongying())     
    elif a == '2':
        print(yingzhong())
    else:
        print("已经退出")
        break