匹配和替换两个单词之间的单词

Question

我有这个字符串例如:

one two three four START four five four five six END seven

我想在其中搜索单词"four"以用REPLACED替换它,这将给出

one two three four START REPLACED five REPLACED five six END seven

我知道START(.*)END会在两个分隔符之间给出单词.我试过了START(?<four>)END,但它什么都没有.

我在Vbscript工作.

Answer 1

(?<name> 适用于命名组.

你需要的是前瞻和查找背后的断言,以匹配START.*和.*END前和后置条件,而不实际匹配他们.

Dim input = "one two three four START four five four five six END seven"
Dim output = Regex.Replace(input, "(?<=START.*)four(?=.*END)", "test")

收益率: one two three four START test five test five six END seven