www.pudn.com > LEX.rar > test.lex

%{ 
int cc[5] = {0,0,0,0,0} ; /* 五种单词符号计数 */  
%} 
%% 
\+          {cc[3]++;} 
\-          {cc[3]++; } 
":="        { cc[4]++;} 
\,          { cc[4]++;} 
\;          { cc[4]++;} 
VAR|var     {cc[1]++; } 
READ|read    {cc[1]++; } 
[a-zA-Z][a-zA-Z0-9]*    {cc[0]++; } 
[0-9][0-9]*   {cc[2]++; } 
end. { printf("\nident:%5d\treserved:%5d\tnumber:%5d\toperator:%5d\tseparator:%5d",cc[0],cc[1],cc[2],cc[3],cc[4]); } 
%%