{"id":587,"date":"2024-10-27T18:34:18","date_gmt":"2024-10-27T10:34:18","guid":{"rendered":"http:\/\/liyanliang.net\/?p=587"},"modified":"2024-10-27T18:34:18","modified_gmt":"2024-10-27T10:34:18","slug":"%e9%80%9a%e8%bf%87%e6%95%b0%e5%ad%a6%e6%96%b9%e6%b3%95%e6%9d%a5%e8%ae%a1%e7%ae%97short%e7%b1%bb%e5%9e%8b%e7%9a%84%e5%8f%98%e9%87%8fw%e7%9a%84%e4%bd%8e%e5%85%ab%e4%bd%8dx%e5%92%8c%e9%ab%98%e5%85%ab","status":"publish","type":"post","link":"http:\/\/liyanliang.net\/index.php\/2024\/10\/27\/%e9%80%9a%e8%bf%87%e6%95%b0%e5%ad%a6%e6%96%b9%e6%b3%95%e6%9d%a5%e8%ae%a1%e7%ae%97short%e7%b1%bb%e5%9e%8b%e7%9a%84%e5%8f%98%e9%87%8fw%e7%9a%84%e4%bd%8e%e5%85%ab%e4%bd%8dx%e5%92%8c%e9%ab%98%e5%85%ab\/","title":{"rendered":"\u901a\u8fc7\u6570\u5b66\u65b9\u6cd5\u6765\u8ba1\u7b97short\u7c7b\u578b\u7684\u53d8\u91cfw\u7684\u4f4e\u516b\u4f4dx\u548c\u9ad8\u516b\u4f4d"},"content":{"rendered":"

\u4e0d\u4f7f\u7528\u4f4d\u8fd0\u7b97\uff0c\u53ef\u4ee5\u901a\u8fc7\u6570\u5b66\u65b9\u6cd5\u6765\u8ba1\u7b97short\u7c7b\u578b\u7684\u53d8\u91cfw\u7684\u4f4e\u516b\u4f4dx\u548c\u9ad8\u516b\u4f4dy\u3002<\/p>\n

\u5177\u4f53\u6b65\u9aa4\u5982\u4e0b\uff1a
\n\u8ba1\u7b97\u4f4e\u516b\u4f4dx\uff1a
\nx\u662fw\u5bf9256\u53d6\u6a21\u7684\u7ed3\u679c\uff0c\u5373x = w % 256\u3002<\/p>\n

\u8ba1\u7b97\u9ad8\u516b\u4f4dy\uff1a
\n\u6839\u636e\u7b49\u5f0f x + y * 256 = w;
\ny\u662fw\u9664\u4ee5256\u7684\u7ed3\u679c\uff0c\u5373y = \uff08w-x) \/ 256\u3002
\n\u4e0b\u9762\u662fC++\u4ee3\u7801\u5b9e\u73b0\uff1a<\/p>\n

`#include <\/p>\n

int main() {
\nshort w = 773;<\/p>\n

\/\/ \u8ba1\u7b97\u4f4e\u516b\u4f4d\nunsigned char x = w % 256;\n\n\/\/ \u8ba1\u7b97\u9ad8\u516b\u4f4d\nunsigned char y = (w-x) \/ 256;\n\nstd::cout << \"x: \" << static_cast(x) << std::endl;\nstd::cout << \"y: \" << static_cast(y) << std::endl;\n\n\/\/ \u9a8c\u8bc1\u7b49\u5f0f x + y * 256 = w\nint result = x + y * 256;\nstd::cout << \"\u9a8c\u8bc1\u7ed3\u679c: \" << result << std::endl;\n\nreturn 0;<\/code><\/pre>\n
}`<\/p>\n
\u89e3\u91ca
\n\u8ba1\u7b97\u4f4e\u516b\u4f4dx\uff1a
\nx = w % 256;\uff1a\u4f7f\u7528\u53d6\u6a21\u8fd0\u7b97\u7b26%\uff0c\u8ba1\u7b97w\u5bf9256\u7684\u4f59\u6570\uff0c\u5f97\u5230w\u7684\u4f4e\u516b\u4f4d\u3002
\n\u8ba1\u7b97\u9ad8\u516b\u4f4dy\uff1a
\ny = (w-x) \/ 256;\uff1a\u4f7f\u7528\u6574\u9664\u8fd0\u7b97\u7b26\/\uff0c\u8ba1\u7b97w\u9664\u4ee5256\u7684\u7ed3\u679c\uff0c\u5f97\u5230w\u7684\u9ad8\u516b\u4f4d\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u4e0d\u4f7f\u7528\u4f4d\u8fd0\u7b97\uff0c\u53ef\u4ee5\u901a\u8fc7\u6570\u5b66\u65b9\u6cd5\u6765\u8ba1\u7b97short\u7c7b\u578b\u7684\u53d8\u91cfw\u7684\u4f4e\u516b\u4f4dx\u548c\u9ad8\u516b\u4f4dy\u3002 \u5177\u4f53\u6b65\u9aa4\u5982\u4e0b\uff1a \u8ba1\u7b97\u4f4e\u516b\u4f4dx\uff1a x\u662fw\u5bf9256\u53d6\u6a21\u7684\u7ed3\u679c\uff0c\u5373x = w % 256\u3002 \u8ba1\u7b97\u9ad8\u516b\u4f4dy\uff1a \u6839\u636e\u7b49\u5f0f x + y * 256 = w; y\u662fw\u9664\u4ee5256\u7684\u7ed3\u679c\uff0c\u5373y = \uff08w-x) \/ 256\u3002 \u4e0b\u9762\u662fC++\u4ee3\u7801\u5b9e\u73b0\uff1a `#include int main() { short w = 773; \/\/ \u8ba1\u7b97\u4f4e\u516b\u4f4d unsigned char x = w % 256; \/\/ \u8ba1\u7b97\u9ad8\u516b\u4f4d unsigned char y = (w-x) \/ 256; std::cout<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[26],"class_list":["post-587","post","type-post","status-publish","format-standard","hentry","category-c","tag-c"],"_links":{"self":[{"href":"http:\/\/liyanliang.net\/index.php\/wp-json\/wp\/v2\/posts\/587","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/liyanliang.net\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/liyanliang.net\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/liyanliang.net\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/liyanliang.net\/index.php\/wp-json\/wp\/v2\/comments?post=587"}],"version-history":[{"count":1,"href":"http:\/\/liyanliang.net\/index.php\/wp-json\/wp\/v2\/posts\/587\/revisions"}],"predecessor-version":[{"id":588,"href":"http:\/\/liyanliang.net\/index.php\/wp-json\/wp\/v2\/posts\/587\/revisions\/588"}],"wp:attachment":[{"href":"http:\/\/liyanliang.net\/index.php\/wp-json\/wp\/v2\/media?parent=587"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/liyanliang.net\/index.php\/wp-json\/wp\/v2\/categories?post=587"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/liyanliang.net\/index.php\/wp-json\/wp\/v2\/tags?post=587"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}