2011年08月05 -
将一个字符串中的多个连一起的空格变成单个空格
如:"aa bb cc dd ee cs "变成"aa bb cc dd ee cs"
//正则表达式实现
Stringstring = "0.0.0.0 0.255.255.255 IANA保留地址 CZ88.NET";
String test
2018年03月20 - In Python I have got this string
在Python中我有这个字符串
string = "Ľubomír Mezovský"
I need to get only first character of it. But when I tried string[0] it returned �. When I tried string[:2] it worked we