摘要:
1 <!DOCTYPE html> 2 <html lang="en"> 3 <head> 4 <meta charset="UTF-8" /> 5 <meta name="viewport" content="width=device-width, initial-scale=1.0" /> 6 阅读全文
摘要:
1 <!DOCTYPE html> 2 <html lang="en"> 3 <head> 4 <meta charset="UTF-8" /> 5 <meta name="viewport" content="width=device-width, initial-scale=1.0" /> 6 阅读全文
摘要:
1 //输入框获取焦点 2 var input = document.querySelector('input') 3 // 添加文档点击监听事件 4 document.addEventListener('keyup', function (e) { 5 // 判断用户按下的键盘code 6 if 阅读全文