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At work we are constantly writing code, writing JavaScript, very little time for conceptual research. I have nothing to do today, I studied the relationship between "null" and "0". I hope you have seen the end of the harvest. Alert (null>=0) What

For example, the following code: $str4="php-class,mysql-class,div-css,0,dreamweaver";$s=strtok($str4,',');while($s!==false){ echo $s.""; $s=strtok(',');} while ($s ===true) {} Why can't it be displayed?True where to use it ~ ~Beginners Please

For example, the following code: {code...} while ($ strue) {} cannot be displayed? Where can I use true ~~ For beginners, please take care of O (∩ _ ∩) O ~ Happy New Year ~ My own understanding is :! If 'false' is true, 1. The value is not equal to 2

Http://blog.chinaunix.net/uid-28458801-id-3941112.htmlThe difference between false/true and False/true 1. The difference between false/true and false/true: False/true is a new keyword in the standard C + + language, and False/true is through #

First look at a special case: Var_dump (0 = = ' false '), returns BOOL (true), PHP determines 0 equals any string, Var_dump (0=== ' false '), returns BOOL (false), and the congruent contains type and value to be equal. Var_dump (0 = false),

ASP. NET true/false paging-true paging, asp.net true/false Paging When the data volume is too large and there are tens of thousands or even tens of thousands of pieces of data, every time you retrieve all the data from the database, the query

classSolution { Public: intNthuglynumber (intN) {if(N 0)return false;//get rid of corner cases if(n = =1)return true;//Base Case intt2 =0, T3 =0, T5 =0;//pointers for 2, 3, 5vectorint>k (n); k[0] =1; for(inti =1; I ) {K[i]= Min

Why does "true" output 1, but "false" output nothing? & Lt ;? Php $ a = true; echo & nbsp; "output below & nbsp; true & nbsp; & lt; br & gt;"; echo & nbsp; $ a; echo & nbsp; '& lt; br & gt;'; $ a = false: Why does true output 1, but false does not

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Why does "true" output 1, but "false" output nothing? & Lt ;? Php $ atrue; echo & nbsp; output below & nbsp; true & nbsp; & lt; br & gt; echo & nbsp; $ a; echo & nbsp; & lt; br & gt; $ afalse; echo & nbsp; below output & nbsp; false & nb why true