<!doctype html><html><head><meta charset="utf-8"><title>无标题文档</title></head><body></body></html><script> ???// ???打印一个空心菱形图案 ????for(var i = 1; i <=6 ; i++){ ???????for(var k = 1 ; k<=6-i; k++){ ???????????document.write("-"); ???????} ???????for(var j = 1 ; j<=i*2-1; j++){ ???????????if(i == 1){ ???????????????document.write("*"); ???????????}else if(j == 1 || j == i*2-1){ ???????????????document.write("*"); ???????????}else{ ???????????????document.write("-"); ???????????} ???????} ???????document.write("<br>"); ???} ???for(var i = 5; i >=1 ; i--){ ???????for(var k = 1 ; k<=6-i; k++){ ???????????document.write("-"); ???????} ???????for(var j = 1 ; j<=i*2-1; j++){ ???????????if(i == 1){ ???????????????document.write("*"); ???????????}else if(j == 1 || j == i*2-1){ ???????????????document.write("*"); ???????????}else{ ???????????????document.write("-"); ???????????} ???????} ???????document.write("<br>"); ???}</script>通过原生JS打印一个空心菱形图案
原文地址：https://www.cnblogs.com/lsqbk/p/10258957.html