JavaScript 학습 노트 02 – 상호 작용
1848 단어 초심자 노트
var myAge=20;
var myName="Bob";
document.write("I am Bob, a 20-year-old boy!");// “ ”
document.write(myName);//
document.write("my name is "+myName);// , +
document.write(myName+"<br>");
document.write("a 20-year-old boy");// HTML , “ ”
2、
alert —— 。
var bo=30;
alert("He is just a child!!");//
alert(bo);//
3、 ( )
confirm(str)
4、 (prompt )
var myName=prompt("input name");
/*
prompt(str1,str2)—— str1 input name;str2 , ;
, , ; , str2
null;PS: , , ;
*/
if(myName!=null){
alert("Hello"+myName);
}else{
alert("Hello my friend");
}
5、
window.open("http://www.baidu.com","_blank","toolbar=yes, location=yes,
directories=no, status=no, menubar=yes, scrollbars=yes, resizable=no,
copyhistory=yes, width=400, height=400");
/*
, :URL, ,
:
_blank ;
_self ;
_top
:www.runoob.com/jsref/obj-window.html
*/
6、
window.close();//
var newWin=window.open("http://www.baidu.com");
newWin.close();//