Hello. var now=(new Date()).getHours(); if(now>0&&now<=6){ document.write("午夜好"); }else if(now>6&&now<=11){ document.write("早上好"); }else if(now>11&&now<=14){ document.write("中午好"); }else if(now>14&&now<=18){ document.write("下午好"); }else{ document.write("晚上好"); } . 歡迎您給我們提出宝贵意见