输入某年某月某日求一共多少天

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function shu(year,month,date){
 var isRunnian = ((year % 4 === 0) && (year % 100 !== 0)) || (year % 400 ===0);

 var rules = [
   31,
   isRunnian ? 29 : 28,
   31,
   30,
   31,
   30,
   31,
   31,
   30,
   31,
   30,
   31
 ];

 for(var i = 0,result = 0; i < month - 1; ++i) {
   result = result + rules[i];
 }
 result = result + date;

 console.log(result);
}
shu(2016,3,1);

输入某年某月某日求一共多少天

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原文地址：http://www.cnblogs.com/thelucky/p/5589516.html