"."切割
String str = "1.2.3.5.6";
String[] splitArr = str.split("\.");//[1, 2, 3, 5, 6]
空格切割
String str = "1 2 3 5 6";
String[] splitArr = str.split("\s+");//[1, 2, 3, 5, 6]
String[] splitArr = str.split(" ");//[1, 2, 3, 5, 6]
""切割
//split支持正则，如下
String str = "a\b\c\d";
String[] splitArr = str.split("\\");//[a, b, c, d]
"切割
String str = ""a"b"c";
String[] splitArr = str.split("\"");
按照多个切割符来切割
String str = "abc;123,456?999|haha";
String[] splitArr = str.split(";|,|\?|\|");//[abc, 123, 456, 999, haha]
String str = “abc;123,456?999|haha”
String[] splitArr = str.split(";|,");//[abc, 123, 456?999|haha]
