\u9019\u662f\u4e00\u500b\u55ae\u7d14\u7684javascript\u7684\u5be6\u4f5c\uff0c\u727d\u6d89\u5230setInterval\u7684\u7528\u6cd5\u548cjavascript\u7684\u7269\u4ef6\u5beb\u6cd5\u3002<\/p>\n
\u6211\u5e0c\u671b\u53ef\u4ee5\u5c07\u6574\u500b\u5012\u6578\u8a08\u6642\u5beb\u6210\u4e00\u500b\u7269\u4ef6\uff0c\u900f\u904e\u5efa\u69cb\u7269\u4ef6\u4e4b\u5f8c\u5c31\u53ef\u4ee5\u958b\u59cb\u9032\u884c\u5012\u6578\uff0c\u800c\u4e0d\u7528\u9084\u8981\u8655\u7406\u5176\u5b83\u4e8b\u60c5\u3002\u6240\u4ee5\u6240\u6709\u7684\u4e8b\u60c5\u901a\u901a\u8981\u5305\u5728\u7269\u4ef6\u88e1\u9762\uff0c\u5305\u62ecsetInterval\u3002\u6240\u4ee5\u6211\u9019\u9ebc\u5beb\uff1a<\/p>\n
function countdown(){<\/p>\n
this.count=function(){<\/p>\n
\/\/\u57f7\u884c\u5012\u6578\u8a08\u6642\u7684\u52d5\u4f5c<\/p>\n
….<\/p>\n
}<\/p>\n
setInterval(‘this.count()’,1000);\u00a0 \/\/\u8a2d\u5b9a\u6bcf\u79d2\u57f7\u884c\u4e00\u6b21\u5012\u6578<\/p>\n
}<\/p>\n
new countdown();<\/p><\/blockquote>\n
\u7d50\u679c\u9047\u5230\u7684\u7b2c\u4e00\u500b\u554f\u984c\u5c31\u662f\uff0c\u5728setInterval\u88e1\u7684this\u6c92\u6709count\u9019\u500b\u51fd\u6578\u3002\u63a5\u4e0b\u4f86\u7684\u8aaa\u660e\u5fc5\u9808\u5177\u5099\u7269\u4ef6\u5c0e\u5411\u7684\u6982\u5ff5\u624d\u80fd\u7406\u89e3\u3002<\/p>\n
\u7269\u4ef6\u6709\u5c6c\u6027\u53ca\u65b9\u6cd5\uff0c\u7269\u4ef6\u7684\u5c6c\u6027\u53ef\u4ee5\u518d\u70ba\u7269\u4ef6\uff0c\u59d1\u4e14\u7528\u7236\u7269\u4ef6\u53ca\u5b50\u7269\u4ef6\u4f86\u7a31\u547c\u3002\u82e5\u8981\u64cd\u4f5c\u7236\u7269\u4ef6\u88e1\u7684\u5b50\u7269\u4ef6\u7684\u5c6c\u6027\uff0c\u5fc5\u9808\u4f7f\u7528\u300c\u7236\u7269\u4ef6.\u5b50\u7269\u4ef6.\u5b50\u7269\u4ef6\u5c6c\u6027\u300d\u9019\u6a23\u5b50\u7684\u8a9e\u6cd5\uff0c\u4e0a\u8ff0\u72c0\u6cc1\u7684\u539f\u56e0\u662f\u56e0\u70ba\u7528\u300c\u7236\u7269\u4ef6.\u5b50\u7269\u4ef6\u5c6c\u6027\u300d\u4f86\u64cd\u4f5c\uff0c\u6240\u4ee5\u6703\u627e\u4e0d\u5230\u5c6c\u6027\uff0c\u5c31\u7b97\u525b\u597d\u6709\u540c\u540d\u5c6c\u6027\uff0c\u4e5f\u4e0d\u662f\u5b50\u7269\u4ef6\u7684\u5c6c\u6027\u3002<\/p>\n
\u5f8c\u4f86\u82e6\u601d\u4e86\u534a\u5929\uff0c\u539f\u4f86\u5728setInterval\u7684\u57f7\u884c\u4e0b\uff0c\u5176\u4e2d\u7684this\u6307\u5411window(\u56e0\u70basetInterval\u662fwindow\u7684\u5c6c\u6027)\uff0c\u800c window\u986f\u7136\u5728\u9810\u8a2d\u7684\u72c0\u6cc1\u4e0b\u4e26\u6c92\u6709count\uff0c\u5373\u4fbf\u7576\u6642window\u6709count\u9019\u500b\u51fd\u6578\uff0c\u4e5f\u4e26\u975e\u662f\u65b0\u5efa\u7269\u4ef6\u88e1\u7684count\u3002\u6240\u4ee5\u6211\u5fc5\u9808\u8981\u8b93setInterval\u8b58\u5f97\u65b0\u5efa\u7acb\u7684\u7269\u4ef6\uff0c\u65bc\u662f\u4e4e\u5728\u5efa\u7acb\u7269\u4ef6\u7684\u6642\u5019\u5c31\u8981\u628a\u7269\u4ef6\u7684\u540d\u5b57\u4e5f\u4e00\u4f75\u7576\u4f5c\u8d77\u59cb\u53c3\u6578\u7d66\u653e\u9032\u53bb\uff1a<\/p>\n
var dd=<\/span>new countdown(‘dd’<\/span>);<\/p>\n
function countdown(_self<\/span>){<\/p>\n
this.count=function(){<\/p>\n
\/\/\u57f7\u884c\u5012\u6578\u8a08\u6642\u7684\u52d5\u4f5c<\/p>\n
….<\/p>\n
}<\/p>\n
setInterval(_self+<\/span>‘.count()’,1000);\u00a0 \/\/\u8a2d\u5b9a\u6bcf\u79d2\u57f7\u884c\u4e00\u6b21\u5012\u6578<\/p>\n
}<\/p><\/blockquote>\n
\u5230\u9019\u88e1\u7684\u78ba\u53ef\u4ee5\u5012\u6578\u4e86\u3002\u4e0d\u904e\u554f\u984c\u53c8\u4f86\u4e86\uff0c\u5982\u679c\u6211\u60f3\u4e2d\u6b62\u5012\u6578\u8a72\u600e\u9ebc\u8fa6\uff1f\u6bcf\u4e00\u500bsetInterval\u90fd\u6703\u56de\u50b3\u4e00\u500b\u503c(\u7de8\u865f)\uff0c\u6211\u5011\u53ef\u4ee5\u900f\u904e\u9019\u500b\u56de\u50b3\u503c\u518d\u642d\u914dclearInterval\u4f86\u4e2d\u6b62\u8a72\u6b21\u7684setInterval\u3002\u6240\u4ee5\u6211\u53ea\u8981\u8a18\u4e0b\u5b83\u7684\u503c\uff0c\u63a5\u8457\u518d\u900f\u904eclearInterval\u4f86\u4e2d\u65b7\u5012\u6578\u5c31\u53ef\u4ee5\u4e86\u3002\u65bc\u662f\u4e4e\u7a0b\u5f0f\u78bc\u8b8a\u6210\u9019\u6a23\uff1a<\/p>\n
var dd=new countdown(‘dd’);<\/p>\n
function countdown(_self){<\/p>\n
this.sid;<\/span><\/p>\n
this.count=function(){<\/p>\n
\/\/\u57f7\u884c\u5012\u6578\u8a08\u6642\u7684\u52d5\u4f5c<\/p>\n
….<\/p>\n
}<\/p>\n
this.stop=function(){<\/span><\/p>\n
clearInterval(this.sid);
\n<\/span><\/p>\n}<\/span><\/p>\n
this.sid=<\/span>setInterval(_self+’.count()’,1000);\u00a0 \/\/\u8a2d\u5b9a\u6bcf\u79d2\u57f7\u884c\u4e00\u6b21\u5012\u6578<\/p>\n
}<\/p><\/blockquote>\n
\u6211\u5c31\u53ef\u4ee5\u900f\u904e\u5df2\u7d93\u5efa\u7acb\u7684\u7269\u4ef6dd\uff0c\u518d\u52a0\u4e0astop\u4f86\u505c\u6b62\u5012\u6578\uff0c\u4f8b\u5982dd.stop()\u3002\u4f46\u662f\u505c\u6b62\u4e4b\u5f8c\u8981\u518d\u555f\u52d5\u600e\u9ebc\u8fa6\uff1f\u4e0d\u662f\u518d\u7522\u751f\u4e00\u500b\u65b0\u7684\u7269\u4ef6\u5427\uff1f\u592a\u6d6a\u8cbb\u4e86\u3002\u8b93dd\u518d\u958b\u59cb\u5012\u6578\u5c31\u597d\uff0c\u800c\u4e14\u672c\u4f86\u5728\u7269\u4ef6\u5c31\u6709\u4e00\u500b\u5012\u6578\u7684\u52d5\u4f5c\uff0c\u53ea\u8981\u91cd\u65b0\u57f7\u884c\u5b83\u4e00\u6b21\u5c31\u597d\u3002\u6240\u4ee5\u518d\u6539\u5beb\u4e00\u6b21\u7a0b\u5f0f\u78bc\uff1a<\/p>\n
var dd=new countdown(‘dd’);<\/p>\n
function countdown(_self){<\/p>\n
this.sid;<\/p>\n
this.count=function(){<\/p>\n
\/\/\u57f7\u884c\u5012\u6578\u8a08\u6642\u7684\u52d5\u4f5c<\/p>\n
….<\/p>\n
}<\/p>\n
this.stop=function(){<\/p>\n
clearInterval(this.sid);<\/p>\n
}<\/p>\n
this.start=function(){<\/span><\/p>\n
this.sid=setInterval(_self+’.count()’,1000);\u00a0 \/\/\u8a2d\u5b9a\u6bcf\u79d2\u57f7\u884c\u4e00\u6b21\u5012\u6578<\/p>\n
}<\/span><\/p>\n
this.start();\u00a0\u00a0 \/\/\u5efa\u7acb\u7269\u4ef6\u5f8c\u6703\u555f\u52d5\u5b83<\/span><\/p>\n
}<\/p><\/blockquote>\n
\u5728\u4e2d\u65b7\u5012\u6578\u4e4b\u5f8c\uff0c\u82e5\u8981\u518d\u555f\u52d5\u5012\u6578\uff0c\u6211\u5011\u53ef\u4ee5\u5229\u7528\u5df2\u7d93\u5efa\u597d\u7684\u7269\u4ef6dd\uff0c\u518d\u52a0\u4e0a\u5b83\u7684start\u4f86\u91cd\u65b0\u555f\u52d5\uff0c\u4f8b\u5982\uff1add.start()\u3002\u4e2d\u65b7\u53ca\u518d\u6b21\u555f\u52d5\u7684\u51fd\u6578\uff0c\u50cf\u662fdd.stop()\u548cdd.start()\u53ea\u8981\u8a2d\u7d66dom\u7269\u4ef6\u7684click\u4e8b\u4ef6\u89f8\u767c\u57f7\u884c\u5373\u53ef\u4ee5\u4e86\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"