String s[] = str.split("\\ |!");
for (int i = 0; i < s.length; i++) {
System.out.println(s[i]);
}
String str = "welcome to!itmyhome bolg";
String s[] = str.split("\\ |!");
for (int i = 0; i < s.length; i++) {
System.out.println(s[i]);
}以？和！作为分隔符。