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I have been using c++ and Python to do the questions before, but suddenly I used PHP to do the questions. As a result, after I wrote the method, I found that I couldn’t input it, which really screwed me up (I have no regrets). . .

For the record, I am also a man who can type in PHP (proud face)

<code><span>// 一行输入，换行结束</span><span>$r</span> = fgets(STDIN);
<span>// 输入的前5个字符</span><span>$e</span> = <span>fread</span>(STDIN, <span>5</span>);
<span>// 一个字符</span><span>$s</span> = fgetc(STDIN);</code>

').addClass('pre-numbering').hide(); $(this).addClass('has-numbering').parent().append($numbering); for (i = 1; i ').text(i)); }; $numbering.fadeIn(1700); }); });

The above introduces the standard input of PHP, including php, and other aspects. I hope it will be helpful to friends who are interested in PHP tutorials.