代码： onload里面：setInterval(that.clockupdate2,10); clockupdate2:function(){ var that = this; if (app.globalData.websocketopen == false) { return; } var m_nums = that.data.m_nums; var s_nums = that.data.s_nums; if (m_nums == 0 && s_nums == 0) { //return; } if (s_nums == 0) { s_nums = 99; if (m_nums == 0) { m_nums = 9; } else { m_nums--; } } else { s_nums--; } var m_nums_str = m_nums; var s_nums_str = s_nums; if (m_nums < 10) { m_nums_str = '0' + m_nums; } if (s_nums < 10) { s_nums_str = '0' + s_nums; } that.setData({ m_nums_str: m_nums_str, s_nums_str: s_nums_str, m_nums: m_nums, s_nums: s_nums }); } 然后wensocket收到信息： that.setData({ m_nums: 9, s_nums: 99 }); 就这些关键代码