{"id":3854,"date":"2022-12-30T15:14:37","date_gmt":"2022-12-30T07:14:37","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=3854"},"modified":"2022-12-30T16:45:45","modified_gmt":"2022-12-30T08:45:45","slug":"%e5%ad%b8%e7%bf%92%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8solidity%e4%b8%ad%e7%9a%84%e9%9a%a8%e6%a9%9f%e6%95%b8%e6%93%8d%e4%bd%9c","status":"publish","type":"post","link":"https:\/\/badgameshow.com\/steven\/solidity\/%e5%ad%b8%e7%bf%92%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8solidity%e4%b8%ad%e7%9a%84%e9%9a%a8%e6%a9%9f%e6%95%b8%e6%93%8d%e4%bd%9c\/","title":{"rendered":"\u5b78\u7fd2\u5982\u4f55\u4f7f\u7528Solidity\u4e2d\u7684\u96a8\u6a5f\u6578\u64cd\u4f5c"},"content":{"rendered":"

<\/p>\n

\u4e86\u89e3\u5982\u4f55\u4f7f\u7528 Solidity \u4e2d\u7684\u96a8\u6a5f\u6578\u64cd\u4f5c<\/h1>\n

Solidity \u662f\u4e00\u7a2e\u667a\u80fd\u5408\u7d04\u8a9e\u8a00\uff0c\u5b83\u53ef\u4ee5\u7528\u65bc\u958b\u767c\u5340\u584a\u93c8\u61c9\u7528\u7a0b\u5e8f\u3002\u5b83\u7684\u529f\u80fd\u5f37\u5927\uff0c\u53ef\u4ee5\u8b93\u958b\u767c\u8005\u5efa\u7acb\u5b89\u5168\u3001\u53ef\u9760\u7684\u667a\u80fd\u5408\u7d04\u3002\u5728 Solidity \u4e2d\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u4f7f\u7528\u96a8\u6a5f\u6578\u64cd\u4f5c\u4f86\u5efa\u7acb\u66f4\u591a\u6a23\u5316\u7684\u61c9\u7528\u7a0b\u5e8f\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u4f7f\u7528 Solidity \u4e2d\u7684\u96a8\u6a5f\u6578\u64cd\u4f5c\u3002<\/p>\n

\u4ec0\u9ebc\u662f\u96a8\u6a5f\u6578\u64cd\u4f5c\uff1f<\/h2>\n

\u96a8\u6a5f\u6578\u64cd\u4f5c\u662f\u4e00\u7a2e\u6280\u8853\uff0c\u53ef\u4ee5\u7528\u65bc\u751f\u6210\u96a8\u6a5f\u6578\u5b57\u3002\u5b83\u53ef\u4ee5\u7528\u65bc\u69cb\u5efa\u61c9\u7528\u7a0b\u5e8f\uff0c\u4f8b\u5982\u62bd\u734e\u6d3b\u52d5\u3001\u6295\u7968\u7cfb\u7d71\u7b49\u3002\u5b83\u53ef\u4ee5\u78ba\u4fdd\u6bcf\u500b\u62bd\u734e\u6d3b\u52d5\u6216\u6295\u7968\u7cfb\u7d71\u90fd\u662f\u516c\u5e73\u7684\uff0c\u4e26\u4e14\u4e0d\u6703\u88ab\u64cd\u7e31\u3002<\/p>\n

\u5982\u4f55\u4f7f\u7528 Solidity \u4e2d\u7684\u96a8\u6a5f\u6578\u64cd\u4f5c\uff1f<\/h2>\n

Solidity \u4e2d\u7684\u96a8\u6a5f\u6578\u64cd\u4f5c\u53ef\u4ee5\u901a\u904e\u5167\u7f6e\u51fd\u6578 keccak256<\/code> \u4f86\u5b8c\u6210\u3002keccak256<\/code> \u51fd\u6578\u53ef\u4ee5\u7528\u65bc\u751f\u6210\u4e00\u500b 256 \u4f4d\u7684\u6578\u5b57\uff0c\u5b83\u53ef\u4ee5\u7528\u65bc\u69cb\u5efa\u61c9\u7528\u7a0b\u5e8f\uff0c\u4f8b\u5982\u62bd\u734e\u6d3b\u52d5\u3001\u6295\u7968\u7cfb\u7d71\u7b49\u3002<\/p>\n

<\/p>\n

\u4e0b\u9762\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff0c\u5c55\u793a\u4e86\u5982\u4f55\u4f7f\u7528 keccak256<\/code> \u51fd\u6578\u4f86\u751f\u6210\u4e00\u500b 256 \u4f4d\u7684\u6578\u5b57\uff1a<\/p>\n

\npragma solidity ^0.5.0;\n\ncontract RandomNumber {\n    function generateRandomNumber() public view returns (uint256) {\n        return keccak256(abi.encodePacked(block.timestamp, block.difficulty));\n    }\n}\n<\/pre>\n
\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u4f7f\u7528 keccak256<\/code> \u51fd\u6578\u4f86\u751f\u6210\u4e00\u500b 256 \u4f4d\u7684\u6578\u5b57\uff0c\u8a72\u6578\u5b57\u662f\u57fa\u65bc\u5340\u584a\u7684\u6642\u9593\u6233\u548c\u96e3\u5ea6\u8a08\u7b97\u51fa\u4f86\u7684\u3002<\/p>\n
\u7e3d\u7d50<\/h2>\n
\u5728\u672c\u6587\u4e2d\uff0c\u6211\u5011\u4ecb\u7d39\u4e86\u5982\u4f55\u4f7f\u7528 Solidity \u4e2d\u7684\u96a8\u6a5f\u6578\u64cd\u4f5c\u3002\u6211\u5011\u4f7f\u7528 keccak256<\/code> \u51fd\u6578\u4f86\u751f\u6210\u4e00\u500b 256 \u4f4d\u7684\u6578\u5b57\uff0c\u8a72\u6578\u5b57\u662f\u57fa\u65bc\u5340\u584a\u7684\u6642\u9593\u6233\u548c\u96e3\u5ea6\u8a08\u7b97\u51fa\u4f86\u7684\u3002\u901a\u904e\u4f7f\u7528\u96a8\u6a5f\u6578\u64cd\u4f5c\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u5efa\u7acb\u66f4\u591a\u6a23\u5316\u7684\u61c9\u7528\u7a0b\u5e8f\uff0c\u4f8b\u5982\u62bd\u734e\u6d3b\u52d5\u3001\u6295\u7968\u7cfb\u7d71\u7b49\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u6587\u7ae0\u6458\u8981\uff1a\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u4f7f\u7528Solidity\u4e2d\u7684\u96a8\u6a5f\u6578\u64cd\u4f5c\uff0c\u8b93\u958b\u767c\u8005\u53ef\u4ee5\u5728\u667a\u80fd\u5408\u7d04\u4e2d\u4f7f\u7528\u96a8\u6a5f\u6578\uff0c\u4ee5\u69cb\u5efa\u66f4\u52a0\u5b89\u5168\u548c\u53ef\u9760\u7684\u61c9\u7528\u3002\u672c\u6587\u5c07\u8a73\u7d30\u4ecb\u7d39Solidity\u4e2d\u7684\u96a8\u6a5f\u6578\u64cd\u4f5c\uff0c\u5305\u62ec\u5982\u4f55\u4f7f\u7528\u96a8\u6a5f\u6578\uff0c\u5982\u4f55\u78ba\u4fdd\u96a8\u6a5f\u6578\u7684\u5b89\u5168\u6027\uff0c\u4ee5\u53ca\u5982\u4f55\u4f7f\u7528\u96a8\u6a5f\u6578\u4f86\u69cb\u5efa\u66f4\u52a0\u5b89\u5168\u7684\u667a\u80fd\u5408\u7d04\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[175],"tags":[176],"class_list":["post-3854","post","type-post","status-publish","format-standard","hentry","category-solidity","tag-solidity"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack-related-posts":[],"jetpack_shortlink":"https:\/\/wp.me\/pcFK27-10a","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3854","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/comments?post=3854"}],"version-history":[{"count":1,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3854\/revisions"}],"predecessor-version":[{"id":3855,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3854\/revisions\/3855"}],"wp:attachment":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media?parent=3854"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=3854"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=3854"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}