for(var i = 1; i<= 9; i++) { for(var j = 1; j<= 9; j++) { document.write(j +"x"+ i + "=" + (i * j + "  ")); } document.write("<br/>"); }
JavaScript:打印九九乘法表
原文：https://www.cnblogs.com/qjuly/p/13277188.html
