静态页面是这样的
如图:
我想问的是我在js里面这样写就可以:
window.onload = function() {
var check = $(".check_img_contant");
console.log(check);
check.on('click', function() {
var cc = $(this).attr('src');
if (cc == 'image/images6.gif') {
$(this).attr('src', 'image/images3.gif')
} else {
$(this).attr('src', 'image/images6.gif')
}
})
};
为何换一种写法就不行:下面是不行的:
window.onload = function() {
var check = document.getElementsByClassName("check_img_contant");
console.log(check);
check.onClick = function() {
var cc = $(this).attr('src');
if (cc == 'image/images6.gif') {
$(this).attr('src', 'image/images3.gif')
} else {
$(this).attr('src', 'image/images6.gif')
}
}
}请打什么指点
如图:
我想问的是我在js里面这样写就可以:
window.onload = function() {
var check = $(".check_img_contant");
console.log(check);
check.on('click', function() {
var cc = $(this).attr('src');
if (cc == 'image/images6.gif') {
$(this).attr('src', 'image/images3.gif')
} else {
$(this).attr('src', 'image/images6.gif')
}
})
};
为何换一种写法就不行:下面是不行的:
window.onload = function() {
var check = document.getElementsByClassName("check_img_contant");
console.log(check);
check.onClick = function() {
var cc = $(this).attr('src');
if (cc == 'image/images6.gif') {
$(this).attr('src', 'image/images3.gif')
} else {
$(this).attr('src', 'image/images6.gif')
}
}
}请打什么指点
var check = document.getElementsByClassName("check_img_contant")[0];另外 onclick 事件要全小写
for(var check in checks){
check.onclick=function(){
var cc=this.src
// continue
}
}
var checks = document.querySelectorAll(".check_img_contant")
for(var i in checks){
(function(i){
checks[i].onclick=function(){
var cc=this.src
if (cc == 'image/images6.gif') {
this.src='image/images3.gif'
} else {
this.src='image/images6.gif'
}
}
})(i)
}