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兼容主流浏览器的JS复制内容到剪贴板 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...opy_gettext = function(){ clipboardswfdata = document.getElementById('test_text').value; //alert(clipboardswfdata); window.document.clipboardswf.SetVariable('str', clipboardswfdata); } var floatwin = function(){ alert('复制成功!'); //docum...
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What is the proper way to test if a parameter is empty in a batch file?

... watch out for strings that use double '"' as an escape sequence -- the script will crash when attempting the comparison. E.g. ""this string will crash the comparison"". Double '"' is the proper escape sequence, and doing a substitution on ...
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How to Reload ReCaptcha using JavaScript?

... for the captcha response doesn't appear to be removed, leaving my form valid. – Damian Green Sep 28 '16 at 12:51 add a comment  |  ...
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How to add a TextView to LinearLayout in Android

... try using LinearLayout linearLayout = (LinearLayout)findViewById(R.id.info); ... linearLayout.addView(valueTV); also make sure that the layout params you're creating are LinearLayout.LayoutParams... share ...
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Error in finding last used cell in Excel with VBA

...down the worksheet (you should note the difference between blank and empty string!). Note that: If your range contains non-contiguous non-blank cells, then it will also give a wrong result. If there is only one non-blank cell, but it is not the first one, your code will still give you the correc...
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How do I add a bullet symbol in TextView?

... This worked for me: <string name="text_with_bullet">Text with a \u2022</string> share | improve this answer | ...
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What's the difference between session.persist() and session.save() in Hibernate?

... transient instance persistent. However, it doesn't guarantee that the identifier value will be assigned to the persistent instance immediately, the assignment might happen at flush time. The spec doesn't say that, which is the problem I have with persist(). persist() also guarante...
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Combine two ActiveRecord::Relation objects

...ates being able to use any ActiveRecord methods on them afterwards, but I didn't need to. I did this: name_relation = first_name_relation + last_name_relation Ruby 1.9, rails 3.2 share | improve ...
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Foreign key constraint may cause cycles or multiple cascade paths?

...lter your design (or doing so would compromise things) then you should consider using triggers as a last resort. FWIW resolving cascade paths is a complex problem. Other SQL products will simply ignore the problem and allow you to create cycles, in which case it will be a race to see which will ove...
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findViewByID returns null

...days on something so trivial. I moved setContentView() above the findViewById() call and that did t he trick. thanks! – agentcurry Jan 26 '12 at 20:35 2 ...