append

Why does Python show `0.2 + 0.1` as `0.30000000000000004`? [duplicate]

由 大憨熊 提交于 2020-01-11 11:27:11
问题 This question already has answers here : Can someone explain this: 0.2 + 0.1 = 0.30000000000000004? [duplicate] (2 answers) Closed 5 years ago . I have written the following code for generating a range with floats: def drange(start, stop, step): result = [] value = start while value <= stop: result.append(value) value += step return result When calling this function with this statement: print drange(0.1,1.0,0.1) I expected to obtain this: [0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0] But

Why does Python show `0.2 + 0.1` as `0.30000000000000004`? [duplicate]

由 纵然是瞬间 提交于 2020-01-11 11:27:08
问题 This question already has answers here : Can someone explain this: 0.2 + 0.1 = 0.30000000000000004? [duplicate] (2 answers) Closed 5 years ago . I have written the following code for generating a range with floats: def drange(start, stop, step): result = [] value = start while value <= stop: result.append(value) value += step return result When calling this function with this statement: print drange(0.1,1.0,0.1) I expected to obtain this: [0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0] But

Java keyTool - append primary/secondary intermediate certificates to key store [closed]

由 烈酒焚心 提交于 2020-01-11 05:26:07
问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 5 years ago . I have already created a keystore (server.jks in the image) having imported the relevant key-pair. keytool -importkeystore -srckeystore server.p12 -destkeystore server.jks -srcstoretype pkcs12 I need to append intermediate certificates to it using the java keytool. Using KeyStore explorer tool on windows, I can

java8 AbstractStringBuilder源码

由 回眸只為那壹抹淺笑 提交于 2020-01-10 08:12:55
更新中... 欢迎大佬指出错误 abstract class AbstractStringBuilder implements Appendable, CharSequence { char[] value;//可变字符数组 int count; //value中非null字符数量 AbstractStringBuilder() { } AbstractStringBuilder(int capacity) {//指定初始容量的构造方法 value = new char[capacity]; } @Override public int length() {//返回长度 return count; } public int capacity() {//返回容量 return value.length; } public void ensureCapacity(int minimumCapacity) { if (minimumCapacity > 0) ensureCapacityInternal(minimumCapacity); } private void ensureCapacityInternal(int minimumCapacity) {//setLength的参数newLength if (minimumCapacity - value.length > 0) {/

Javascript cut table to insert a tag <div>

由 只愿长相守 提交于 2020-01-07 09:36:34
问题 I want to cut table after tr to insert a div and re-open the table : Before : <table> <tr onClick="cutAfter(this);"> <td>bla</td><td> 123 </td><td>Yes </td> </tr> <tr onClick="cutAfter(this);"> <td>bli</td><td> 456 </td><td>no</td> </tr> <tr onClick="cutAfter(this);"> <td>blu</td><td> 789 </td><td>hum</td> </tr> </table> After : <table> <tr onClick="cutAfter(this);"> <td>bla</td><td> 123 </td><td>Yes </td> </tr> <tr onClick="cutAfter(this);"> <td>bli</td><td> 456 </td><td>no</td> </tr> <

Does jQuery append() close html tags?

由 强颜欢笑 提交于 2020-01-06 16:43:07
问题 The append cmd doesn't close my tags, but why? What do i have to change? for (var i = 0; i<=4; i++) $("#wrapper").append('<li id=img'+i+'></li>'); This always creates only <li id=img1> , but no </li> ?! 回答1: Your code should be: for (var i = 0; i<=4; i++) $("#wrapper").append('<li id="img'+i+'"></li>'); I think you forgot the quotes for the id attribute 回答2: The code you provided does seem to add the tags you want. If I run the exact javascript you provided, viewing generated source using the

Does jQuery append() close html tags?

由 若如初见. 提交于 2020-01-06 16:40:43
问题 The append cmd doesn't close my tags, but why? What do i have to change? for (var i = 0; i<=4; i++) $("#wrapper").append('<li id=img'+i+'></li>'); This always creates only <li id=img1> , but no </li> ?! 回答1: Your code should be: for (var i = 0; i<=4; i++) $("#wrapper").append('<li id="img'+i+'"></li>'); I think you forgot the quotes for the id attribute 回答2: The code you provided does seem to add the tags you want. If I run the exact javascript you provided, viewing generated source using the

Add key eventlistener to last generated input field and stop it after typing

由 你离开我真会死。 提交于 2020-01-06 10:07:04
问题 When I click a Button, a form of an unspecific number of input fields will be generated in my dom plus an empty input Field. I want to add something like a keypress event to the last generated empty input field. When I start typing, into the last empty input field, another input field should append. This new appended input field should get the keypress eventlistener and the input field I am in should loose the keypress eventlistener. Here's how I did it( EDIT: added as code snippet): $

Add key eventlistener to last generated input field and stop it after typing

由 ∥☆過路亽．° 提交于 2020-01-06 10:07:02
问题 When I click a Button, a form of an unspecific number of input fields will be generated in my dom plus an empty input Field. I want to add something like a keypress event to the last generated empty input field. When I start typing, into the last empty input field, another input field should append. This new appended input field should get the keypress eventlistener and the input field I am in should loose the keypress eventlistener. Here's how I did it( EDIT: added as code snippet): $

Add key eventlistener to last generated input field and stop it after typing

由 你说的曾经没有我的故事 提交于 2020-01-06 10:06:51
问题 When I click a Button, a form of an unspecific number of input fields will be generated in my dom plus an empty input Field. I want to add something like a keypress event to the last generated empty input field. When I start typing, into the last empty input field, another input field should append. This new appended input field should get the keypress eventlistener and the input field I am in should loose the keypress eventlistener. Here's how I did it( EDIT: added as code snippet): $
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