<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title></title> </head> <body> <script> var arr=[]; for(let i=0;i<3;i++) { arr[i]=prompt("请"); } console.log(arr.join("/")); //判断是不是闰年 if((arr[0] % 4 == 0) && (arr[0] % 100 != 0 || arr[0]% 400 == 0)) { if(arr[1]==1) { console.log(0+(+arr[2])); } else if(arr[1]==2) { console.log(31+(+arr[2])); } else if(arr[1]==3) { console.log(60+(+arr[2])); } else if(arr[1]==4) { console.log(91+(+arr[2])); } else if(arr[1]==5) { console.log(121+(+arr[2])); } else if(arr[1]==6) { console.log(152+(+arr[2])); } else if(arr[1]==7) { console.log(182+(+arr[2])); } else if(arr[1]==8) {console.log(213+(+arr[2])); } else if(arr[1]==9) { console.log(244+(+arr[2])); } else if(arr[1]==10) { console.log(274+(+arr[2])); } else if(arr[1]==11) { console.log(305+(+arr[2])); } else if(arr[1]==12) {console.log(335+(+arr[2])); } else { console.log("输入的月错了"); } } else{ if(arr[1]==1) { console.log(0+(+arr[2])); } else if(arr[1]==2) { console.log(31+(+arr[2])); } else if(arr[1]==3) { console.log(59+(+arr[2])); } else if(arr[1]==4) { console.log(90+(+arr[2])); } else if(arr[1]==5) { console.log(120+(+arr[2])); } else if(arr[1]==6) { console.log(151+(+arr[2])); } else if(arr[1]==7) { console.log(181+(+arr[2])); } else if(arr[1]==8) {console.log(212+(+arr[2])); } else if(arr[1]==9) { console.log(243+(+arr[2])); } else if(arr[1]==10) { console.log(273+(+arr[2])); } else if(arr[1]==11) { console.log(304+(+arr[2])); } else if(arr[1]==12) {console.log(334+(+arr[2])); } else { console.log("输入的月错了"); } } </script> </body> </html>
