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《C_Primer_Plus》读书笔记.rar
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<html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta charset="utf-8"> <meta name="generator" content="pdf2htmlEX"> <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"> <link rel="stylesheet" href="https://static.pudn.com/base/css/base.min.css"> <link rel="stylesheet" href="https://static.pudn.com/base/css/fancy.min.css"> <link rel="stylesheet" href="https://static.pudn.com/prod/directory_preview_static/627e873bebb030486dfbb9ae/raw.css"> <script src="https://static.pudn.com/base/js/compatibility.min.js"></script> <script src="https://static.pudn.com/base/js/pdf2htmlEX.min.js"></script> <script> try{ pdf2htmlEX.defaultViewer = new pdf2htmlEX.Viewer({}); }catch(e){} </script> <title></title> </head> <body> <div id="sidebar" style="display: none"> <div id="outline"> </div> </div> <div id="pf1" class="pf w0 h0" data-page-no="1"><div class="pc pc1 w0 h0"><img class="bi x0 y0 w1 h1" alt="" 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_8"></span>&#8217;<span class="ff3">x&#8217;<span class="_ _5"></span></span>&#23646;<span class="_ _5"></span>&#20110;&#22522;<span class="_ _5"></span>&#26412;&#31867;<span class="_ _5"></span>&#22411;<span class="_ _5"></span>&#65288;<span class="_ _5"></span><span class="ff3">char</span>&#65289;<span class="_ _5"></span><span class="ff3">,<span class="_ _5"></span></span>&#32780;&#8221;<span class="_ _5"></span><span class="ff3">x&#8221;</span>&#21017;<span class="_ _5"></span>&#23646;<span class="_ _5"></span>&#20110;&#27966;<span class="_ _5"></span>&#29983;&#31867;<span class="_ _5"></span>&#22411;<span class="_ _5"></span>&#65288;<span class="_ _5"></span><span class="ff3">char<span class="_"> </span></span>&#25968;&#32452;&#65289;<span class="_ _5"></span>&#65292;&#21478;</span></div><div class="t m0 x3 h4 y9 ff1 fs1 fc0 sc1 ls0 ws0">&#22806;&#65292;<span class="_ _9"></span>&#8221;<span class="ff3">x&#8221;</span>&#23454;&#38469;&#19978;&#26159;&#30001;&#20004;&#20010;&#23383;&#31526;&#65288;&#8217;<span class="ff3">x&#8217;</span>&#21644;&#31354;&#23383;&#31526;&#8217;<span class="ff3">&#8217;</span>&#65289;&#32452;&#25104;&#30340;&#12290;</div><div class="t m0 x2 h4 ya ff3 fs1 fc0 sc1 ls0 ws0">3<span class="ff1">&#65294;<span class="_ _1"> </span></span>strlen()<span class="ff1">&#26159;<span class="_ _5"></span>&#20197;&#23383;<span class="_ _5"></span>&#31526;&#20026;&#21333;<span class="_ _5"></span>&#20301;&#32473;<span class="_ _5"></span>&#20986;&#23383;<span class="_ _5"></span>&#31526;&#20018;<span class="_ _5"></span>&#30340;&#38271;<span class="_ _5"></span>&#24230;&#65292;&#20854;<span class="_ _5"></span>&#20013;&#31354;<span class="_ _5"></span>&#23383;&#31526;<span class="_ _5"></span>&#8217;<span class="_ _5"></span></span>&#8217;<span class="ff1">&#24182;<span class="_ _5"></span>&#19981;&#35745;<span class="_ _5"></span>&#31639;&#22312;<span class="_ _5"></span>&#20869;&#65292;<span class="_ _5"></span>&#32780;<span class="_ _7"> </span></span>sizeof()<span class="_ _5"></span><span class="ff1">&#26159;&#20197;<span class="_ _5"></span>&#23383;&#33410;<span class="_ _5"></span>&#20026;&#21333;<span class="_ _5"></span>&#20301;</span></div><div class="t m0 x3 h4 yb ff1 fs1 fc0 sc1 ls0 ws0">&#32473;&#20986;&#25968;&#25454;&#30340;&#22823;&#23567;&#65292;&#20854;&#20013;&#36824;&#21253;&#25324;&#31354;&#23383;&#31526;&#8217;<span class="ff3">&#8217;</span>&#12290;</div><div class="t m0 x2 h4 yc ff3 fs1 fc0 sc1 ls0 ws0">4<span class="ff1">&#65294;<span class="_ _1"> </span>&#23450;&#20041;&#31526;<span class="_ _5"></span>&#21495;&#24120;&#37327;&#30340;<span class="_ _5"></span>&#24847;&#20041;&#65306;<span class="_ _3"></span></span>a.<span class="ff1">&#25552;<span class="_ _5"></span>&#20379;&#26356;&#22810;<span class="_ _5"></span>&#30340;&#20449;&#24687;&#65292;<span class="_ _5"></span>&#22686;&#24378;&#20195;&#30721;<span class="_ _5"></span>&#30340;&#21487;&#35835;<span class="_ _5"></span>&#24615;&#65307;<span class="_ _2"></span></span>b.<span class="ff1">&#20415;<span class="_ _5"></span>&#20110;&#26356;&#25913;<span class="_ _5"></span>&#20195;&#30721;&#65292;&#29305;<span class="_ _5"></span>&#21035;&#23545;&#20110;<span class="_ _5"></span>&#22312;&#22810;&#22788;&#20351;</span></div><div class="t m0 x3 h4 yd ff1 fs1 fc0 sc1 ls0 ws0">&#29992;&#21516;&#19968;&#24120;&#37327;&#32780;&#21448;&#24517;&#39035;&#25913;&#21464;&#23427;&#30340;&#20540;&#26102;&#26356;&#20026;&#36866;&#29992;&#12290;&#21487;&#23558;&#31526;&#21495;&#24120;&#37327;&#21517;&#23450;&#20041;&#20026;&#22823;&#20889;&#23383;&#27597;&#65292;&#24403;&#36935;&#21040;&#22823;&#20889;&#30340;&#31526;&#21495;&#21517;</div><div class="t m0 x3 h4 ye ff1 fs1 fc0 sc1 ls0 ws0">&#26102;&#65292;&#23601;&#21487;&#30693;&#36947;&#23427;&#26159;&#19968;&#20010;&#24120;&#37327;&#32780;&#21464;&#37327;&#20102;&#65292;&#27604;&#22914;<span class="ff3">:</span></div><div class="t m0 x3 h5 yf ff3 fs1 fc0 sc1 ls0 ws0">#define PI 3.14159</div><div class="t m0 x4 h4 y10 ff1 fs1 fc0 sc1 ls0 ws0">&#36825;&#37324;&#22914;&#26524;&#25105;&#20204;&#36825;&#26679;&#23450;&#20041;&#65306;</div><div class="t m0 x3 h5 y11 ff3 fs1 fc0 sc1 ls0 ws0">float pi = 3.14159;</div><div class="t m0 x3 h4 y12 ff1 fs1 fc0 sc1 ls0 ws0">&#30001;&#20110;<span class="_ _a"> </span><span class="ff3">pi<span class="_ _7"> </span></span>&#26159;<span class="_ _5"></span>&#20010;&#21464;&#37327;<span class="_ _5"></span>&#65292;&#31243;<span class="_ _5"></span>&#24207;&#21487;&#33021;<span class="_ _5"></span>&#24847;&#22806;<span class="_ _5"></span>&#22320;&#25913;<span class="_ _5"></span>&#21464;&#23427;<span class="_ _5"></span>&#30340;&#20540;<span class="_ _5"></span>&#65292;&#22240;&#27492;<span class="_ _5"></span>&#25105;&#20204;<span class="_ _5"></span>&#20351;&#29992;<span class="_ _2"></span><span class="ff3">#define<span class="_ _7"> </span></span>&#26469;<span class="_ _5"></span>&#23450;&#20041;&#23427;<span class="_ _5"></span>&#12290;&#38500;<span class="_ _5"></span>&#20102;&#20197;&#19978;<span class="_ _5"></span>&#26041;&#27861;<span class="_ _5"></span>&#20043;&#22806;<span class="_ _3"></span>&#65292;</div><div class="t m0 x3 h4 y13 ff1 fs1 fc0 sc1 ls0 ws0">&#25105;&#20204;&#36824;&#21487;&#20197;&#20351;&#29992;<span class="_ _7"> </span><span class="ff3">const<span class="_ _7"> </span></span>&#20462;&#39280;&#31526;&#26469;&#21019;&#24314;&#31526;&#21495;&#24120;&#37327;&#65292;&#27492;&#26102;&#23427;&#23601;&#25104;&#20026;&#21482;&#35835;&#20540;&#65292;&#22312;&#35745;&#31639;&#20013;&#26159;&#19981;&#21487;&#25913;&#21464;&#30340;&#65292;&#27604;&#22914;&#65306;</div><div class="t m0 x3 h5 y14 ff3 fs1 fc0 sc1 ls0 ws0">const float pi = 3.14159;</div><div class="t m0 x2 h4 y15 ff3 fs1 fc0 sc1 ls0 ws0">5<span class="ff1">&#65294;<span class="_ _1"> </span></span>linits.h<span class="ff1">&#65306;&#25972;&#25968;&#38480;&#21046;&#22836;&#25991;&#20214;&#65292;</span>float.h<span class="ff1">&#65306;&#28014;&#28857;&#25968;&#38480;&#21046;&#22836;&#25991;&#20214;&#12290;&#20363;&#22914;&#65306;</span></div><div class="t m0 x3 h5 y16 ff3 fs1 fc0 sc1 ls0 ws0">#include &lt;stdio.h&gt;</div><div class="t m0 x3 h5 y17 ff3 fs1 fc0 sc1 ls0 ws0">#include &lt;limits.h&gt;</div><div class="t m0 x3 h5 y18 ff3 fs1 fc0 sc1 ls0 ws0">#include &lt;float.h&gt;</div><div class="t m0 x3 h5 y19 ff3 fs1 fc0 sc1 ls0 ws0">int main(void)</div><div class="t m0 x3 h5 y1a ff3 fs1 fc0 sc1 ls0 ws0">{</div><div class="t m0 x5 h5 y1b ff3 fs1 fc0 sc1 ls0 ws0">printf("Max int value on this system:%d ",INT_MAX);</div><div class="t m0 x5 h5 y1c ff3 fs1 fc0 sc1 ls0 ws0">printf("Min int value on this system:%d ",INT_MIN);</div><div class="t m0 x5 h5 y1d ff3 fs1 fc0 sc1 ls0 ws0">printf("Max float normal value on this system:%e ",FL<span class="_ _b"></span>T_MAX);</div><div class="t m0 x5 h5 y1e ff3 fs1 fc0 sc1 ls0 ws0">printf("Min float normal value on this system:%e ",FL<span class="_ _b"></span>T_MIN);</div><div class="t m0 x3 h5 y1f ff3 fs1 fc0 sc1 ls0 ws0"> return 0;</div><div class="t m0 x3 h5 y20 ff3 fs1 fc0 sc1 ls0 ws0">}</div><div class="t m0 x3 h4 y21 ff1 fs1 fc0 sc1 ls0 ws0">&#36755;&#20986;&#32467;&#26524;&#65306;</div><div class="t m0 x3 h5 y22 ff3 fs1 fc0 sc1 ls0 ws0">Max int value on this system:2147483647</div><div class="t m0 x3 h5 y23 ff3 fs1 fc0 sc1 ls0 ws0">Min int value on this system:-2147483648</div><div class="t m0 x3 h5 y24 ff3 fs1 fc0 sc1 ls0 ws0">Max float normal value on this system:3.402823e+038</div><div class="t m0 x3 h5 y25 ff3 fs1 fc0 sc1 ls0 ws0">Min float normal value on this system:1.175494e-038</div><div class="t m0 x2 h4 y26 ff3 fs1 fc0 sc1 ls0 ws0">6<span class="ff1">&#65294;<span class="_ _1"> </span>&#19981;&#21305;&#37197;&#30340;&#28014;&#28857;&#36716;&#25442;&#23454;&#20363;&#65306;</span></div></div></div><div class="pi" data-data='{"ctm":[1.611850,0.000000,0.000000,1.611850,0.000000,0.000000]}'></div></div> </body> </html>
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