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HTML
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class="ot"
尾部連結 hbbb(xx)
2018年8月1日 星期三
querySelectorAll
document.querySelectorAll("*") / document.all
<!..0> <html> <!..1> <head></head> <!..2> <body style="font-size: 20px;"> <!..3> <div id="D1" class="cc" style="display:none" >1234</div> <!..4> <span id="D2" class="cc" style="display:none">11111</span> <!..5> <h3 id="D3" class="cc" style="display:none">33333</h2> <!..6> <img id="D4" class="cc"src=" " style="display:none"/> </body> </html> <!..7> <div id="DP"></div> <!..9> <script> var i=0; var x = document.querySelectorAll("*"); var DP = '<h3>x = document.querySelectorAll("*")</h3>'; DP += "x.length = " + x.length + "<br>"; for (i=0; i < x.length;i++){ DP += "<br> x[" + i +"].tagName= "+ x[i].tagName; } DP += "<br><br>"; for (i=0; i < x.length;i++){ DP += "<br> x[" + i +"].id = "+ x[i].id ; } DP += "<br><br>"; for (i=0; i < x.length;i++){ DP += "<br> x[" + i +"].innerHTML = "+ x[i].innerHTML ; } DP += "<br><br>"; document.getElementById("DP").innerHTML= DP ; </script>
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<!..0> <html> <!..1> <head></head> <!..2> <body style="font-size: 20px;"> <!..3> <div id="D1" class="cc" style="display:none" >1234</div> <!..4> <span id="D2" class="cc" style="display:none">11111</span> <!..5> <h3 id="D3" class="cc" style="display:none">33333</h2> <!..6> <img id="D4" class="cc"src=" " style="display:none"/> </body> </html> <!..7> <div id="DP"></div> <!..9> <script> var i=0; var x = document.querySelectorAll(".cc"); var DP = '<h3>x = document.querySelectorAll(".cc")</h3>'; DP += "x.length = " + x.length + "<br>"; for (i=0; i < x.length;i++){ DP += "<br> x[" + i +"].tagName= "+ x[i].tagName; } DP += "<br><br>"; for (i=0; i < x.length;i++){ DP += "<br> x[" + i +"].id = "+ x[i].id ; } DP += "<br><br>"; for (i=0; i < x.length;i++){ DP += "<br> x[" + i +"].innerHTML = "+ x[i].innerHTML ; } DP += "<br><br>"; document.getElementById("DP").innerHTML= DP ; </script>
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<!..0> <html> <!..1> <head></head> <!..2> <body style="font-size: 20px;"> <!..3> <div id="D1" class="cc" style="display:none" >1234</div> <!..4> <span id="D2" class="cc" style="display:none">11111</span> <!..5> <h3 id="D3" class="cc" style="display:none">33333</h2> <!..6> <img id="D4" class="cc"src=" " style="display:none"/> </body> </html> <!..7> <div id="DP"></div> <!..9> <script> var i=0; var x = document.querySelectorAll("div"); var DP = '<h3>x = document.querySelectorAll("div")</h3>'; DP += "x.length = " + x.length + "<br>"; for (i=0; i < x.length;i++){ DP += "<br> x[" + i +"].tagName= "+ x[i].tagName; } DP += "<br><br>"; for (i=0; i < x.length;i++){ DP += "<br> x[" + i +"].id = "+ x[i].id ; } DP += "<br><br>"; for (i=0; i < x.length;i++){ DP += "<br> x[" + i +"].innerHTML = "+ x[i].innerHTML ; } DP += "<br><br>"; document.getElementById("DP").innerHTML= DP ; </script>
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<!..0> <html> <!..1> <head></head> <!..2> <body style="font-size: 20px;"> <!..3> <div id="D1" class="cc" style="display:none" >1234</div> <!..4> <span id="D2" class="cc" style="display:none">11111</span> <!..5> <h3 id="D3" class="cc" style="display:none">33333</h2> <!..6> <img id="D4" class="cc"src=" " style="display:none"/> </body> </html> <!..7> <div id="DP"></div> <!..9> <script> var i=0; var x = document.all; var DP = '<h3>x = document.all</h3>'; DP += "x.length = " + x.length + "<br>"; for (i=0; i < x.length;i++){ DP += "<br> x[" + i +"].tagName= "+ x[i].tagName; } DP += "<br><br>"; for (i=0; i < x.length;i++){ DP += "<br> x[" + i +"].id = "+ x[i].id ; } DP += "<br><br>"; for (i=0; i < x.length;i++){ DP += "<br> x[" + i +"].innerHTML = "+ x[i].innerHTML ; } DP += "<br><br>"; document.getElementById("DP").innerHTML= DP ; </script>
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