点号的疑惑
<!-- Code highlighting produced by Actipro CodeHighlighter (freeware) http://www.CodeHighlighter.com/ --> echo '1+5='.1; //为什么这么写会报错 echo '1+5='. 1; //这句却能执行 echo '1+5='.(1);//外面弄个括号却又行了
echo "thr"."ee"; //输出字符串"three" echo "twe" . "lve"; //输出字符串"twelve" echo 1 . 2; //输出字符串"12" echo 1.2; //输出数字1.2 echo 1 ..2; //输出字符串"10.2" <div class="clear"> </div>