关于String.split(String regex, int limit)

http://blog.sina.com.cn/s/blog_6a332a090100vrs6.html
public String[] split(String regex, int limit)

limit n 大于0,则pattern(模式)应用n - 1 次

关于String.split(String regex, int limit)String s = “boo:and:foo”
关于String.split(String regex, int limit)s.split(“:”,2)
关于String.split(String regex, int limit)//result is { “boo”, “and:foo” }
limit n 小于0,则pattern(模式)应用无限次

关于String.split(String regex, int limit)String s = “boo:and:foo”
关于String.split(String regex, int limit)s.split(“:”,-2)
关于String.split(String regex, int limit)//result is { “boo”, “and”, “foo” }
limit n 等于0,则pattern(模式)应用无限次并且省略末尾的空字串

关于String.split(String regex, int limit)String s = “boo:and:foo”
关于String.split(String regex, int limit)s.split(“o”, -2)
//result is { “b”, “”, “and:f”, “”, “” }
s.split(“o”, 0)
//result is { “b”, “”, “and:f” }

例子:string “boo:and:foo”

Regex Limit Result
2 { “boo”, “and:foo” }
5 { “boo”, “and”, “foo” }
-2 { “boo”, “and”, “foo” }
o 5 { “b”, “”, “:and:f”, “”, “” }
o -2 { “b”, “”, “:and:f”, “”, “” }
o 0 { “b”, “”, “:and:f” }

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