摘要：
<!doctype html><html><head><meta charset="utf-8"><title>无标题文档</title></head><style> *{margin:0;padding:0;list-style:none;}#menu{position:relative; wid 阅读全文
摘要：
js: <input type="text" id = 'phone'><button id = 'fs'>发送验证码</button><script> var ofs = document.getElementById('fs'); var ophone = document.getElement 阅读全文