如何从Java字符串中删除一些单词

问题描述

| 我在Android平台上工作，我使用字符串变量填充html内容，之后我想删除一些单词（特别是删除-0标签之间的任何单词。任何解决方案吗？

解决方法

String newHtml = oldHtml.replaceFirst(\"(?s)(<head>)(.*?)(</head>)\",\"$1$3\");

说明：

oldHtml.replaceFirst(\" // we want to match only one occurrance
(?s)                   // we need to turn Pattern.DOTALL mode on
                       // (. matches everything,including line breaks)
(<head>)               // match the start tag and store it in group $1
(.*?)                  // put contents in group $2,.*? will match non-greedy,// i.e. select the shortest possible match
(</head>)              // match the end tag and store it in group $3
\",\"$1$3\");             // replace with contents of group $1 and $3

, 另一个解决方案:)

String s = \"Start page <head> test </head>End Page\";
StringBuilder builder = new StringBuilder(s);
builder.delete(s.indexOf(\"<head>\") + 6,s.indexOf(\"</head>\"));

System.out.println(builder.toString());

, 尝试：

String input = \"...<head>..</head>...\";
String result = input.replaceAll(\"(?si)(.*<head>).*(</head>.*)\",\"$1$2\");

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