A:<img src=\"http://localhost:8443/image/20210903/f7dd0a30a2d01bf0a186120f96bf9af6/image7.png\"  />  b.<img src=\"http://localhost:8443/image/20210903/f7dd0a30a2d01bf0a186120f96bf9af6/image7.png\"  />  Z、


        Pattern r = Pattern.compile("([A-Za-z])([：:．.、])(.+?)(?=((?!p|t)[A-Z_a-z][：:．.、]))");
        Matcher m 
 
= r.matcher("A:<img src=\"http://localhost:8443/image/20210903/f7dd0a30a2d01bf0a186120f96bf9af6/image7.png\"  />  b.<img src=\"http://localhost:8443/image/20210903/f7dd0a30a2d01bf0a186120f96bf9af6/image7.png\"  />  Z、");
//        Pattern r = Pattern.compile("Window(?=95|98|NT|2000|3.1)");
//        Matcher m = r.matcher("Windows95 Window95");
 

        while (m.find()) {
            System.out.print(m.group(1));
            System.out.print("-");
            System.out.print(m.group(3));
            System.out.println("");
        }

輸出

A-<img src="http://localhost:8443/image/20210903/f7dd0a30a2d01bf0a186120f96bf9af6/image7.png" />
b-<img src="http://localhost:8443/image/20210903/f7dd0a30a2d01bf0a186120f96bf9af6/image7.png" />

((?!p|t)[A-Z_a-z][：:．.、])

這串的意思是匹配不包含pt開頭的英文字元且第二個字元為：:．.、

?=為預查不消耗匹配到的字元，也就是說匹配到了以b.做結尾的字元但是不消耗b.