JS:输出9*9乘法表 9*9 multiplication table var row = 9; var colum = 9; document.write(""); for(i = 1; i <= row; i++){ //循环控制行 document.write(""); for (j = 1; j <= colum; j++){ //循环控制列 if (j <= i){ document.write(""+ i + "*" + j ...