Question

如果我有一个由My.Function <- function(X1,X2,con.int) { X1bar = sum(X1)/n X2bar = sum(X2)/n XD = X2-X1 XDbar = sum(X2-X1)/n n = length(X1) Sd = sqrt((sum((XD-XDbar)^2))/(n-1)) Alpha = 1 - con.int T = qt(Alpha/2, n-1) Lower.B = (X2bar - X1bar) - T*Sd/sqrt(n) Uper.B = (X2bar - X1bar) + T*Sd/sqrt(n) print(c(Lower.B,"X2bar - X1bar",Uper.B)) }命令组成的列表：

dic.keys()

密钥由[ "['my', 'modem']", "['technical', 'schematics']", "['still', 'glad']", "['spent', 'calling']", "['most', 'feared']", "['the', 'sysop']", "['s', 'mystique']", "['had', 'been']", "['of', 'doom']", "['i', 'hooked']", "['in', 'california']", "['my', 'ego']", "['until', 'my']", "['didn', 't']" ]组成，所以它看起来像list，但是是一个字符串。我的问题是，你怎么能把每个项目分开来让它看起来像这样？

str()

Answer 1

只需对每个字符串进行模式匹配：

res = []
for item in l:
    m = re.match("\['(.*)', '(.*)'\]", item)
    res.append(m.group(1))
    res.append(m.group(2))
#>>> res - ['my', 'modem', 'technical', ...]

修改多级嵌套列表以生成单级列表

1 个答案: