老师是这样吗？
来源：2-11 编程练习
weixin_慕哥0328317
2020-03-05 16:11:49
<?php //单引号 $today='Happy New Year!'; echo 'str is \'$str1\'','<br>',$today; //双引号 $yesterday="Happy New Year!"; echo "<br>"," str is \"Happy New Year\"","<br>",$yesterday;
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guly
2020-03-05
你好，代码逻辑与结果是正确的，祝学习愉快！
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