Question

def find_acronym():
    # if search term in database returns acronym and expansion
    for abbr, text in acronyms.items():
        if abbr == search_analyte.get():
            expansion.insert(0.0,'{0:>6}: {1: <10}\n'.format(abbr, text))
        elif str(search_analyte.get()) in text:
            expansion.insert(0.0,'{0:>6}: {1: <10}\n'.format(abbr, text))

    # if search term not in database , returns message DOES NOT WORK PROPERLY!     
    if search_analyte.get() not in text or abbr != search_analyte.get():
        expansion.insert(0.0,'"{0}"{1} \n {2}\n'.format(search_analyte.get(),' is  not in the database.','Add,if appropriate'))

我使用此函数以{ ACRONYM: text details, ACRONYM2: its test,...}

格式搜索首字母缩略词词典及其相关的扩展含义

算法的工作原理是它检索任何搜索项的首字母缩略词和文本，但总是返回来自最后一条条件的文本消息，用于发现项目是否在数据库与否。我显然不合逻辑，或者我不明白循环如何在Python中工作。

Answer 1

现在的方式，最后一个测试是在 FOR循环完成后运行，因此您无法再与abbr和text进行比较

你想要这样的东西：

def find_acronym(): found = False # if search term in database returns acronym and expansion for abbr, text in acronyms.items(): if abbr == search_analyte.get(): expansion.insert(0.0,'{0:>6}: {1: <10}\n'.format(abbr, text)) found = True elif str(search_analyte.get()) in text: expansion.insert(0.0,'{0:>6}: {1: <10}\n'.format(abbr, text)) found = True # if search term not in database if not found: expansion.insert(0.0,'"{0}"{1} \n {2}\n'.format(search_analyte.get(),' is not in the database.','Add,if appropriate'))

Answer 2

如果我理解你想要达到的目标，可以采用以下方法：

def find_acronym():
    found=False
    # if search term in database returns acronym and expansion
    for abbr, text in acronyms.items():
        if abbr == search_analyte.get():
            found=True
            expansion.insert(0.0,'{0:>6}: {1: <10}\n'.format(abbr, text))
        elif str(search_analyte.get()) in text:
            found=True
            expansion.insert(0.0,'{0:>6}: {1: <10}\n'.format(abbr, text))

    # if search term not in database , returns message DOES NOT WORK PROPERLY!     
    if not found:
        expansion.insert(0.0,'"{0}"{1} \n {2}\n'.format(search_analyte.get(),' is  not in the database.','Add,if appropriate'))

Python中if语句流中的逻辑

2 个答案: