题目要求:
关键代码如下所示:
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class program
{
static void main( string [] args)
{
console.writeline( "请输入正确的邮箱地址,以 @sina.com 结尾" );
string us =convert.tostring(console.readline());
string str1 = us.replace( "@" , "" );
int count = us.length - str1.length;
string str2 = us.replace( "." , "" );
int count2 = us.length - str2.length;
int count3 = us.length - 1;
int xl=us.indexof( "." )-us.indexof( "@" );
bool mw = (us.indexof( "@sina.com" ) == (us.length-9));
while (count == 1 && count2 == 1 && us.indexof( "@" ) > 0 && us.indexof( "." ) > us.indexof( "@" )
&& us.indexof( "." )<count3)
{
if (xl != 1 && us.contains( "@sina.com" ) && mw)
{
console.writeline( "正确" );
}
else {
console.writeline( "输入的邮箱地址有误" );
}
break ;
}
console.readline();
}
}
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以上所述是小编给大家介绍的c#判断email地址是否为合法,希望对大家有所帮助,如果大家有任何疑问请给我留言,小编会及时回复大家的。在此也非常感谢大家对服务器之家网站的支持!
原文链接:http://www.cnblogs.com/wintuzi/p/5687400.html