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1.
function containSpecial( s ){
var containSpecial = RegExp(/[(\ )(\~)(\!)(\@)(\#) (\$)(\%)(\^)(\&)(\*)(\()(\))(\-)(\_)(\+)(\=) (\[)(\])(\{)(\})(\|)(\\)(\;)(\:)(\')(\")(\,)(\.)(\/) (\)(\?)(\)]+/);
return ( containSpecial.test(s) );
}
2。匹配除A-Z a-z 0- ...