{"id":1183,"date":"2022-01-04T16:17:54","date_gmt":"2022-01-04T08:17:54","guid":{"rendered":"http:\/\/139.9.1.231\/?p=1183"},"modified":"2022-01-04T18:18:43","modified_gmt":"2022-01-04T10:18:43","slug":"cdata","status":"publish","type":"post","link":"http:\/\/139.9.1.231\/index.php\/2022\/01\/04\/cdata\/","title":{"rendered":"c++ \u6570\u636e\u7c7b\u578b"},"content":{"rendered":"\n<p class=\"has-light-pink-background-color has-background\">\u672c\u6587\u4e3b\u8981\u5173\u4e8e\u6570\u636e\u7c7b\u578b\u3002\u9762\u5411\u5bf9\u8c61\u7f16\u7a0b\u7684\u672c\u8d28\u5c31\u662f\u8bbe\u8ba1\u5e76\u6269\u5c55\u81ea\u5df1\u7684\u7684\u6570\u636e\u7c7b\u578b\u3002<\/p>\n\n\n<div class=\"wp-block-calendar\"><table id=\"wp-calendar\" class=\"wp-calendar-table\">\n\t<caption>2026\u5e74 4\u6708<\/caption>\n\t<thead>\n\t<tr>\n\t\t<th scope=\"col\" title=\"\u661f\u671f\u4e00\">\u4e00<\/th>\n\t\t<th scope=\"col\" title=\"\u661f\u671f\u4e8c\">\u4e8c<\/th>\n\t\t<th scope=\"col\" title=\"\u661f\u671f\u4e09\">\u4e09<\/th>\n\t\t<th scope=\"col\" title=\"\u661f\u671f\u56db\">\u56db<\/th>\n\t\t<th scope=\"col\" title=\"\u661f\u671f\u4e94\">\u4e94<\/th>\n\t\t<th scope=\"col\" title=\"\u661f\u671f\u516d\">\u516d<\/th>\n\t\t<th scope=\"col\" title=\"\u661f\u671f\u65e5\">\u65e5<\/th>\n\t<\/tr>\n\t<\/thead>\n\t<tbody>\n\t<tr>\n\t\t<td colspan=\"2\" class=\"pad\">&nbsp;<\/td><td>1<\/td><td>2<\/td><td>3<\/td><td>4<\/td><td>5<\/td>\n\t<\/tr>\n\t<tr>\n\t\t<td>6<\/td><td>7<\/td><td>8<\/td><td>9<\/td><td><a href=\"http:\/\/139.9.1.231\/index.php\/2026\/04\/10\/\" aria-label=\"2026\u5e744\u670810\u65e5 \u53d1\u5e03\u7684\u6587\u7ae0\">10<\/a><\/td><td>11<\/td><td>12<\/td>\n\t<\/tr>\n\t<tr>\n\t\t<td>13<\/td><td>14<\/td><td>15<\/td><td>16<\/td><td>17<\/td><td>18<\/td><td>19<\/td>\n\t<\/tr>\n\t<tr>\n\t\t<td>20<\/td><td>21<\/td><td>22<\/td><td>23<\/td><td>24<\/td><td>25<\/td><td id=\"today\">26<\/td>\n\t<\/tr>\n\t<tr>\n\t\t<td>27<\/td><td>28<\/td><td>29<\/td><td>30<\/td>\n\t\t<td class=\"pad\" colspan=\"3\">&nbsp;<\/td>\n\t<\/tr>\n\t<\/tbody>\n\t<\/table><nav aria-label=\"\u4e0a\u4e2a\u6708\u53ca\u4e0b\u4e2a\u6708\" class=\"wp-calendar-nav\">\n\t\t<span class=\"wp-calendar-nav-prev\"><a href=\"http:\/\/139.9.1.231\/index.php\/2026\/03\/\">&laquo; 3\u6708<\/a><\/span>\n\t\t<span class=\"pad\">&nbsp;<\/span>\n\t\t<span class=\"wp-calendar-nav-next\">&nbsp;<\/span>\n\t<\/nav><\/div>\n\n\n<p>\u9996\u5148\u4e86\u89e3c++\u7684\u5185\u7f6e\u6570\u636e\u7c7b\u578b \uff1a\u57fa\u672c\u7c7b\u578b\u548c\u590d\u5408\u7c7b\u578b<\/p>\n\n\n\n<p>\u57fa\u672c\u7c7b\u578b\uff1a\u6574\u5f62\u548c\u6d6e\u70b9\u578b      \u590d\u5408\u7c7b\u578b\uff1a\u6570\u7ec4\u3001\u6307\u9488\u3001\u5b57\u7b26\u4e32\u3001\u7ed3\u6784   \u5b58\u50a8\u6570\u636e\u7684\u65b9\u6cd5\uff1a\u53d8\u91cf<\/p>\n\n\n\n<ul class=\"has-light-blue-background-color has-background\"><li>\u7b80\u5355\u53d8\u91cf<\/li><\/ul>\n\n\n\n<p>\u53d8\u91cf\u547d\u540d\u89c4\u5219\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-style-default\"><img loading=\"lazy\" width=\"1024\" height=\"237\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-23-1024x237.png\" alt=\"\" class=\"wp-image-1187\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-23-1024x237.png 1024w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-23-300x70.png 300w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-23-768x178.png 768w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-23.png 1148w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>\u5982\u679c\u60f3\u7528\u591a\u4e2a\u5355\u8bcd\u7ec4\u6210\u4e00\u4e2a\u540d\u79f0\uff0c\u901a\u5e38\u4f7f\u7528\u4e0b\u5212\u7ebf\u5b57\u7b26\u5c06\u5355\u8bcd\u5206\u5f00\uff0c\u5982 my_onions\uff0c\u6216\u8005 \u4ece\u7b2c\u4e8c\u4e2a\u5355\u8bcd\u5f00\u59cb\u5c06\u6bcf\u4e2a\u5355\u8bcd\u7684\u7b2c\u4e00\u4e2a\u5b57\u6bcd\u5927\u5199\uff1amyEyeTooth<\/p>\n\n\n\n<ul class=\"has-light-blue-background-color has-background\"><li>\u6574\u578b<\/li><\/ul>\n\n\n\n<p>\u4e0d\u542b\u5c0f\u6570\u7684\u6570\u5b57 0\uff0c-3 \uff0c100\u3002\u4e0d\u540c\u7684\u6574\u578b\u4f7f\u7528\u4e0d\u540c\u7684\u5185\u5b58\u6765\u5b58\u50a8\u6574\u6570\u3002\u6709\u7b26\u53f7\u548c\u65e0\u7b26\u53f7\u7c7b\u578b\u5206\u522b\u8868\u793a\u6b63\u8d1f\u6570\u548c\u6b63\u6570<\/p>\n\n\n\n<p class=\"has-light-pink-background-color has-background\">short   int  long   longlong \u901a\u8fc7\u4e0d\u540c\u6570\u76ee\u7684\u4f4d\u5b58\u50a8\u503c\uff1a(\u90fd\u662f\u6709\u7b26\u53f7\u6570)<\/p>\n\n\n\n<p>short \u81f3\u5c1116\u4f4d  \uff1ashort x    \uff08short== short int\uff09<\/p>\n\n\n\n<p>int \u81f3\u5c11\u4e0eshort\u4e00\u6837\u957f<\/p>\n\n\n\n<p>long \u81f3\u5c1132\u4f4d\uff0c\u4e14\u81f3\u5c11\u4e0eint\u4e00\u6837\u957f \uff08long ==  long int\uff09<\/p>\n\n\n\n<p>lonng long \u4e4b\u5c1164\u4f4d\uff0c\u4e14\u81f3\u5c11\u4e0elong\u4e00\u6837\u957f<\/p>\n\n\n\n<p class=\"has-light-blue-background-color has-background\">sizeof \u8fd0\u7b97\u7b26\uff0c\u83b7\u5f97\u53d8\u91cf\u7684\u6240\u5360\u5b57\u8282\uff0c\u5bf9\u4e8e\u7c7b\u578b\u540d int\u7b49\u4f7f\u7528\u65f6\uff0c\u9700\u8981\u52a0\u62ec\u53f7\uff1a sizeof (int),\u5982\u679c\u662f\u5bf9\u4e8e\u53d8\u91cf\uff0c\u53ef\u52a0\u53ef\u4e0d\u52a0\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>#include&lt;iostream&gt;\nusing  namespace std;\nint main(){\n    int x_collec =2;\n    cout&lt;&lt;\"x_collec is\"&lt;&lt;sizeof(x_collec)&lt;&lt; endl;\n}<\/code><\/pre>\n\n\n\n<p class=\"has-dark-gray-color has-light-blue-background-color has-text-color has-background\">\u521d\u59cb\u5316\uff1a<\/p>\n\n\n\n<p>int year =2022    \/\/\u5982\u679c\u77e5\u9053\u53d8\u91cf\u521d\u59cb\u503c\uff0c\u5efa\u8bae\u5b9a\u4e49\u65f6\u5019\u8d4b\u521d\u503c\u3002<\/p>\n\n\n\n<p class=\"has-light-blue-background-color has-background\">c++11 \u521d\u59cb\u5316\u65b9\u6cd5\uff1a\u5c06\u5927\u62ec\u53f7\u7528\u4e8e\u5355\u503c\u53d8\u91cf\uff0c\u91c7\u7528\u8fd9\u79cd\u65b9\u6cd5\u65f6\u5019\uff0c=\u53ef\u4ee5\u53bb\u6389<\/p>\n\n\n\n<p>                int x={3}  or  int x{3}   <\/p>\n\n\n\n<p>\u5927\u62ec\u53f7\u4e2d\u4e0d\u542b\u503c\u9ed8\u8ba4\u4e3a0                  int z{}<\/p>\n\n\n\n<p class=\"has-light-pink-background-color has-background\">\u5934\u6587\u4ef6climits<\/p>\n\n\n\n<p>climits\u5b9a\u4e49\u4e86\u7b26\u53f7\u5e38\u91cf\u6765\u5e76\u8868\u793a\u7c7b\u578b\u7684\u9650\u5236\uff1a int n =INT_MAX;<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-style-default\"><img loading=\"lazy\" width=\"1024\" height=\"376\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-24-1024x376.png\" alt=\"\" class=\"wp-image-1196\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-24-1024x376.png 1024w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-24-300x110.png 300w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-24-768x282.png 768w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-24.png 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large is-style-default\"><img loading=\"lazy\" width=\"1024\" height=\"341\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-25-1024x341.png\" alt=\"\" class=\"wp-image-1197\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-25-1024x341.png 1024w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-25-300x100.png 300w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-25-768x256.png 768w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-25.png 1189w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<ul class=\"has-light-blue-background-color has-background\"><li>\u65e0\u7b26\u53f7\u7c7b\u578b<\/li><\/ul>\n\n\n\n<p>\u8981\u521b\u5efa\u65e0\u7b26\u53f7\u7c7b\u578b\uff0c\u53ea\u9700\u8981\u4f7f\u7528unsigned \u6765\u4fee\u6539\u53d8\u91cf\u58f0\u660e\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>unsigned   short  x  \nunsigned   int  x\nunsigned   long  x       <\/code><\/pre>\n\n\n\n<ul class=\"has-light-blue-background-color has-background\"><li>char \u7c7b\u578b  \uff08\u4e5f\u662f\u6574\u578b\uff09<\/li><\/ul>\n\n\n\n<p>char\u7528\u4e8e\u5b58\u50a8\u5b57\u7b26\uff08\u5b57\u6bcd\u548c\u6570\u5b57\uff09 char  x =&#8221;M&#8221; ,\u5b9e\u9645\u4e0a\uff0c\u8ba1\u7b97\u673a\u4e2d\u5b58\u50a8\u7684\u662f\u5bf9\u5e94\u7684\u5b57\u7b26\u7f16\u780177\uff0c\u53ef\u4ee5\u5c06x =x+1\uff0cchar\u503c\u4f4d78\uff0c\u5bf9\u5e94N\uff0c\u53ef\u4ee5\u901a\u8fc7 \uff08int\uff09x\u5f3a\u5236\u8f6c\u6362\u4e3a78 <\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-style-default\"><img loading=\"lazy\" width=\"1024\" height=\"262\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-26-1024x262.png\" alt=\"\" class=\"wp-image-1203\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-26-1024x262.png 1024w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-26-300x77.png 300w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-26-768x197.png 768w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-26.png 1188w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>\u6709\u4e9b\u5b57\u7b26\u4e0d\u80fd\u901a\u8fc7\u952e\u76d8\u76f4\u63a5\u8f93\u5165\uff0c\u6bd4\u5982\u6362\u884c\u7b26\u4e0d\u80fd\u7528\u56de\u8f66\uff0c\u56e0\u6b64\uff0c\u6709\u4e86\u4e0b\u9762\u7684\u8f6c\u4e49\u5b57\u7b26\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-style-default\"><img loading=\"lazy\" width=\"1024\" height=\"410\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-27-1024x410.png\" alt=\"\" class=\"wp-image-1204\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-27-1024x410.png 1024w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-27-300x120.png 300w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-27-768x307.png 768w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-27.png 1212w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>char \u53608bit\uff0cunsigned char \u8868\u793a\u8303\u56f40-255\uff0c signed char \u8868\u793a\u8303\u56f4-128~127<\/p>\n\n\n\n<p class=\"has-light-pink-background-color has-background\">c++11\u65b0\u589e char16_t  char32_t, char16_t  \u65e0\u7b26\u53f716\u4f4d\uff0c  char32_t  32\u4f4d\u6709\u7b26\u53f7\u6570\uff0c\u4f7f\u7528\u524d\u7f00u\u8868\u793a char16_t  \u7c7b\u578b\u7684\u5b57\u7b26\u5e38\u91cf\u548c\u5b57\u7b26\u4e32\u5e38\u91cf\uff0c \u4f7f\u7528\u524d\u7f00U\u8868\u793a char32_t  \u7c7b\u578b\u7684\u5b57\u7b26\u5e38\u91cf\u548c\u5b57\u7b26\u4e32\u5e38\u91cf \uff1a char16_t   ch=u&#8217;q&#8217;;<\/p>\n\n\n\n<ul class=\"has-light-blue-background-color has-background\"><li>bool\u7c7b\u578b<\/li><\/ul>\n\n\n\n<p>\u5e03\u5c14\u503c true  or  false\uff0c\u5c06\u975e 0\u503c\u89e3\u91ca\u4e3atrue\uff0c\u5c060\u89e3\u91ca\u4e3afalse\u3002\u5b57\u9762\u503ctrue\u548cfalse\u90fd\u53ef\u4ee5\u901a\u8fc7\u63d0\u5347\u8f6c\u6362\uff08\u4e0d\u7528\u663e\u5f0f\u5f3a\u5236\u8f6c\u6362\uff09\u4e3a int\u7c7b\u578b\uff0ctrue\u8f6c\u6362\u4e3a1\uff0cfalse\u8f6c\u6362\u4e3a0\u3002<\/p>\n\n\n\n<ul class=\"has-light-blue-background-color has-background\"><li>const\u9650\u5b9a\u7b26<\/li><\/ul>\n\n\n\n<p>\u5e38\u91cf\u88ab\u521d\u59cb\u5316\u540e\u5c31\u4e0d\u80fd\u4fee\u6539\u4e86 const int  year =2022<\/p>\n\n\n\n<p>const type name =value<\/p>\n\n\n\n<h2>\u6d6e\u70b9\u6570<\/h2>\n\n\n\n<p>\u80fd\u591f\u8868\u793a \u5e26\u5c0f\u6570\u90e8\u5206\u7684\u6570\u5b57<\/p>\n\n\n\n<p>\u4e66\u5199\u6d6e\u70b9\u6570\uff1a<\/p>\n\n\n\n<p>1\u3001\u6807\u51c6\u5199\u6cd5 12.34   22.3   0.12 8.0<\/p>\n\n\n\n<p>2\u3001E\u8868\u793a\u6cd5   3.45E6  \u6307\u7684\u662f3.45\u4e0e1000000\u76f8\u4e58\u7ed3\u679c\uff0cE6\u6307\u7684\u662f10\u76846\u6b21\u65b9\uff0c6\u662f\u6307\u6570\uff0c\u6307\u6570\u53ef\u4ee5\u662f\u6b63\u6570\u4e5f\u53ef\u4ee5\u662f\u8d1f\u6570\u3002E\u53ef\u4ee5\u5199\u6210e\u3002<\/p>\n\n\n\n<ul class=\"has-light-blue-background-color has-background\"><li>\u6d6e\u70b9\u7c7b\u578b<\/li><\/ul>\n\n\n\n<p>\u4e09\u79cd\uff1afloat 32\u4f4d   double 64\u4f4d   long  double 128\u4f4d\uff0c\u6d6e\u70b9\u6570\u6709\u7cbe\u5ea6\u9650\u5236\u3002<\/p>\n\n\n\n<p>float \u53ea\u80fd\u4fdd\u8bc16\u4f4d\u7cbe\u786e\u4f4d\uff0cdouble\u4fdd\u8bc113\u4f4d\u7cbe\u786e\u5ea6\u3002<\/p>\n\n\n\n<p>cout\u6240\u5c5e\u7684ostream\u7c7b\u6709\u4e00\u4e2a\u7c7b\u6210\u5458\u51fd\u6570\uff0c\u80fd\u591f\u7cbe\u786e\u7684\u63a7\u5236\u8f93\u51fa\u683c\u5f0f-\u5b57\u6bb5\u5bbd\u5ea6\u3001\u5c0f\u6570\u4f4d\u6570\u3001\u91c7\u7528\u5c0f\u6570\u683c\u5f0f\u8fd8\u662fE\u683c\u5f0f\u7b49\u3002\u540e\u9762\u4f1a\u7ed9\u51fa\u5b9e\u73b0\u3002<\/p>\n\n\n\n<p>\u5728\u7a0b\u5e8f\u4e2d\u4f7f\u7528 \u6d6e\u70b9\u5e38\u91cf\u65f6\u5019\uff0c\u9ed8\u8ba4\u4f1a\u8ba4\u4e3a\u662fdouble\u578b\uff0c\u5982\u679c\u8981\u6307\u5b9a\u7c7b\u578b\uff0c\u5728\u5e38\u91cf\u540e\u52a0\u540e\u7f00\uff1a<\/p>\n\n\n\n<p>1.23f  &#8212;-float\u578b<\/p>\n\n\n\n<p>1.23L  &#8212;&#8211;long double<\/p>\n\n\n\n<p>1.23    &#8212;-\u9ed8\u8ba4double \u7c7b\u578b<\/p>\n\n\n\n<h2>c++ \u7b97\u6570\u8fd0\u7b97\u7b26<\/h2>\n\n\n\n<p class=\"has-light-pink-background-color has-background\"><strong>\u52a0\u3001\u51cf\u3001\u4e58\u3001\u9664\u3001\u6c42\u6a21<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-style-default\"><img loading=\"lazy\" width=\"1024\" height=\"262\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-29-1024x262.png\" alt=\"\" class=\"wp-image-1218\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-29-1024x262.png 1024w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-29-300x77.png 300w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-29-768x196.png 768w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-29.png 1326w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"has-light-blue-background-color has-background\">\u9664\u6cd5\uff1a\u5982\u679c\u4e24\u4e2a\u6574\u6570\u76f8\u9664\uff0c\u7ed3\u679c\u4f1a\u662f\u4e00\u4e2a\u6574\u6570<strong>\uff08\u5c0f\u6570\u90e8\u5206\u76f4\u63a5\u820d\u53bb\uff09<\/strong>\uff0c\u5982\u679c\u4e24\u4e2a\u6570\u4e2d \u6709\u4e00\u4e2a\u6216\u4e24\u4e2a\u662f\u6d6e\u70b9\u6570\uff0c\u5219\u5c0f\u6570\u90e8\u5206\u4f1a\u88ab\u4fdd\u7559\u3002<strong>\uff08\u56e0\u4e3a\u7cfb\u7edf\u4f1a\u5c06\u4e0d\u540c\u64cd\u4f5c\u6570\u8fdb\u884c\u81ea\u52a8\u51c6\u6362\u6210\u76f8\u540c\u7684\u7c7b\u578b\uff09<\/strong>\u3002<\/p>\n\n\n\n<h2>\u7c7b\u578b\u8f6c\u6362<\/h2>\n\n\n\n<p class=\"has-light-gray-background-color has-background\">1\u3001\u521d\u59cb\u5316\u548c\u8d4b\u503c\u8fdb\u884c\u7684\u8f6c\u6362<\/p>\n\n\n\n<p>\u6bd4\u5982\u8d4b\u503c\u65f6 double  x  = 3.14f     \u5c06\u4e00\u4e2afloat\u578b\u4ed8\u7ed9double \uff0c\u5982\u679c\u5c06double\u4ed8\u7ed9float\u53d8\u91cf\uff0c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u964d\u4f4e\u7cbe\u5ea6\u3002int x =3.14f   \u6700\u7ec8x=3\uff08\u76f4\u63a5\u4e22\u5f03\u5c0f\u6570\u90e8\u5206\uff09<\/p>\n\n\n\n<p>0\u8d4b\u503c\u7ed9bool\uff0c\u4f1a\u8f6c\u6362\u4e3afalse\uff0c\u975e0\u503c\u4f1a\u53d8\u4e3atrue<\/p>\n\n\n\n<p class=\"has-light-gray-background-color has-background\">2\u3001\u7b97\u6570\u8fd0\u7b97\u65f6<\/p>\n\n\n\n<p>\u53d8\u91cf\u63d0\u5347\uff1a\u5728\u8ba1\u7b97\u8868\u8fbe\u5f0f\u65f6c++\u5c06 bool\u3001char\u3001unsigned char \u3001signed char \u548cshort \u8f6c\u6362\u4e3aint\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-style-default\"><img loading=\"lazy\" width=\"1024\" height=\"237\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-30-1024x237.png\" alt=\"\" class=\"wp-image-1226\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-30-1024x237.png 1024w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-30-300x69.png 300w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-30-768x178.png 768w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-30.png 1386w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large is-style-default\"><img loading=\"lazy\" width=\"1024\" height=\"129\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-31-1024x129.png\" alt=\"\" class=\"wp-image-1227\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-31-1024x129.png 1024w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-31-300x38.png 300w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-31-768x97.png 768w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-31.png 1414w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"has-light-gray-background-color has-background\">3\u3001\u4f20\u9012\u53c2\u6570\u65f6\u8f6c\u6362<\/p>\n\n\n\n<p class=\"has-light-gray-background-color has-background\">4\u3001\u5f3a\u5236\u7c7b\u578b\u8f6c\u6362<\/p>\n\n\n\n<p>\u9996\u5148\u8981\u660e\u786e\u4e00\u70b9\u5f3a\u5236\u8f6c\u6362\u4e0d\u4f1a\u4fee\u6539\u53d8\u91cf\u672c\u8eab \uff0c\u800c\u662f\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u3001\u6307\u5b9a\u7c7b\u578b\u7684\u503c\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u4e24\u79cd\u65b9\u6cd5\u90fd\u53ef\u4ee5\uff1a<\/p>\n\n\n\n<p>(long) x    \u6216\u8005  long  (x)     <\/p>\n\n\n\n<p>(typename)  value       type (value)<\/p>\n\n\n\n<p>c++\u8fd8\u5f15\u5165\u4e86\u5f3a\u5236\u7c7b\u578b\u8f6c\u6362\u8fd0\u7b97\u7b26\uff1a static _cast&lt;typename&gt; (value)<\/p>\n\n\n\n<p class=\"has-light-gray-background-color has-background\">C++\u4e2d\u7684auto\u58f0\u660e<\/p>\n\n\n\n<p>c++11\u65b0\u589e\u4e86auto\uff0c\u8ba9\u7f16\u8bd1\u5668\u80fd\u591f\u6839\u636e\u521d\u59cb\u503c\u7c7b\u578b\u63a8\u65ad\u53d8\u91cf\u7c7b\u578b\u3002<\/p>\n\n\n\n<div class=\"wp-block-image is-style-default\"><figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-32.png\" alt=\"\" class=\"wp-image-1233\" width=\"363\" height=\"66\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-32.png 621w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-32-300x55.png 300w\" sizes=\"(max-width: 363px) 100vw, 363px\" \/><\/figure><\/div>\n\n\n\n<p class=\"has-bright-blue-background-color has-background\">typedef<\/p>\n\n\n\n<p>C \u8bed\u8a00\u63d0\u4f9b\u4e86\u00a0<strong>typedef<\/strong>\u00a0\u5173\u952e\u5b57\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u5b83\u6765\u4e3a\u7c7b\u578b\u53d6\u4e00\u4e2a\u65b0\u7684\u540d\u5b57\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">typedef unsigned char BYTE;\n\u5728\u8fd9\u4e2a\u7c7b\u578b\u5b9a\u4e49\u4e4b\u540e\uff0c\u6807\u8bc6\u7b26 BYTE \u53ef\u4f5c\u4e3a\u7c7b\u578b unsigned char \u7684\u7f29\u5199<\/pre>\n\n\n\n<figure class=\"wp-block-image size-large is-style-default\"><img src=\"https:\/\/cdn.pixabay.com\/photo\/2021\/12\/24\/17\/14\/nature-6891549_960_720.jpg\" alt=\"\"\/><figcaption>https:\/\/pixabay.com\/photos\/nature-winter-tree-season-outdoors-6891549\/<\/figcaption><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>\u672c\u6587\u4e3b\u8981\u5173\u4e8e\u6570\u636e\u7c7b\u578b\u3002\u9762\u5411\u5bf9\u8c61\u7f16\u7a0b\u7684\u672c\u8d28\u5c31\u662f\u8bbe\u8ba1\u5e76\u6269\u5c55\u81ea\u5df1\u7684\u7684\u6570\u636e\u7c7b\u578b\u3002 \u9996\u5148\u4e86\u89e3c++\u7684\u5185\u7f6e\u6570\u636e\u7c7b\u578b \uff1a\u57fa\u672c &hellip; <a href=\"http:\/\/139.9.1.231\/index.php\/2022\/01\/04\/cdata\/\" class=\"more-link\">\u7ee7\u7eed\u9605\u8bfb<span class=\"screen-reader-text\">c++ \u6570\u636e\u7c7b\u578b<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[14],"tags":[],"_links":{"self":[{"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/posts\/1183"}],"collection":[{"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/comments?post=1183"}],"version-history":[{"count":44,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/posts\/1183\/revisions"}],"predecessor-version":[{"id":1268,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/posts\/1183\/revisions\/1268"}],"wp:attachment":[{"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/media?parent=1183"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/categories?post=1183"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/tags?post=1183"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}