自增自減小練習
阿新 • • 發佈:2018-12-21
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>自增自減練習</title> <script type="text/javascript"> var n1 = 10; var n2 = 20; var n = n1++;//n1 = 11 n1++=10 console.log("n="+n);//10 console.log("n1="+n1);//11 n=++n1;//++n1=n1=12; n=12 console.log("n="+n);//12 console.log("n1="+n1);//12 n = n2--;//n2=19;n2--=20 console.log("n="+n);//20 console.log("n1="+n2);//19 n=--n2;//--n2=18;n2=18 console.log("n="+n);//18 console.log("n1="+n2);//18 </script> </head> <body> </body> </html>