实验一词法分析器的设计(5)
时间：2026-01-17
if (ch == '>')
words[j++] = ch;
words[j] = '\0';
ch = program[i++]; if (ch == '=')
{
words[j++] = ch;
words[j] = '\0';
flag = 403;
}
else
{
i--;
flag = 404;
}
break;
}
case'<':{
if (ch == '<')
words[j++] = ch;
words[j] = '\0';
ch = program[i++]; if (ch == '=')
{
words[j++] = ch;
words[j] = '\0';
flag = 405;
}
else
{
i--;
flag = 406;
}
break;
}
case'!':{
if (ch == '!')
words[j++] = ch;
words[j] = '\0';
ch = program[i++]; if (ch == '=')
{
words[j++] = ch;
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