String str="abcd"; 
  
  
String[] strArr=str.split("");
 
 

-- 得到["","a","b","c","d" ]

请问如何写 split里的 正则 得到[ "a","d" ]

String str = "abcd中文ef"; String[] strArr = str.split("(?<!^)"); for (String s : strArr) { System.out.println("#" + s + "#"); } 输出： #a# #b# #c# #d# #中# #文# #e# #f#