, I used the two methods are as follows: no, but not an error, please leaders see

 
The function print () {
The debugger. 
Var iframeLength=document. GetElementsByTagName (" iframe "). The length; 
Var iframe_start=0; 
$(" iframe ".) each (function () {
Var SRC=https://bbs.csdn.net/topics/$(this). Attr (" SRC "); 
$(this) onl oad=function () {
Iframe_start + +; 
The console. The info (iframe_start); 
If (iframe_start==iframeLength) {
Window. The print (); 
} 
} 
}); 
} 
The function print2 () {
The debugger. 
Var iframes=document. GetElementsByTagName (" iframe "); 
For (var I=0; I & lt; Iframes. Length; I++) {
Var iframeId=iframes [I]. Id; 
Var currentIframe=document. GetElementById (iframeId); 
If (currentIframe. AttachEvent) {
CurrentIframe. AttachEvent (onload, function () {
//wait for the iframe loaded 
}); 
continue; 
} else {
CurrentIframe. onl oad=function () {
Window. The print ();//the iframe loaded 
} 
} 
} 

} 

CodePudding user response:

The function print () {
The debugger.
Var iframeLength=document. GetElementsByTagName (" iframe "). The length;
Var iframe_start=0;
$(" iframe ".) each (function () {
Var SRC=https://bbs.csdn.net/topics/$(this). Attr (" SRC ");

/* $(this). Ready (function () {
Iframe_start + +;
The console. The log (iframe_start, 'iframe_start);
If (iframe_start==iframeLength) {
Window. The print ();
}
}) */
//error in jq use ready here
$(this) onl oad=function () {
Iframe_start + +;
The console. The info (iframe_start);
If (iframe_start==iframeLength) {
Window. The print ();
}
}
});
}