大约有 1,200 项符合查询结果（耗时：0.0147秒） [XML]
source of historical stock data [closed]
...IS NO LONGER ACCURATE AS THE YAHOO FEED HAS CEASED TO EXIST
Using Yahoo's CSV approach above you can also get historical data!
You can reverse engineer the following example:
http://ichart.finance.yahoo.com/table.csv?s=YHOO&d=0&e=28&f=2010&g=d&a=3&b=12&c=1996&ignore...
How to convert a List into a comma separated string without iterating List explicitly [dupli
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With Java 8:
String csv = String.join(",", ids);
With Java 7-, there is a dirty way (note: it works only if you don't insert strings which contain ", " in your list) - obviously, List#toString will perform a loop to create idList but it does n...
ImageUtil 扩展：图像工具扩展，提供图像处理和变换功能 · App Inventor 2 中文网
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组件：组件类型，目标图像组件
返回值：列表类型，包含图像属性的列表（宽度、高度等）
Resize 调整大小(组件,新宽度,新高度)
调整图像大小到指定尺寸。
组件：组件类型，目标图像组件
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Popup弹出菜单扩展 · App Inventor 2 中文网
...项
从字符串设置菜单项
从列表设置菜单项
从文件加载菜单项
菜单项定义格式
菜单文本
图标名称
复选框
其他设置
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How to save MySQL query output to excel or .txt file? [duplicate]
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From Save MySQL query results into a text or CSV file:
MySQL provides an easy mechanism for writing the results of a select
statement into a text file on the server. Using extended options of
the INTO OUTFILE nomenclature, it is possible to create a comma
sepa...
How do I load a file from resource folder?
...ntextClassLoader();
InputStream is = classloader.getResourceAsStream("test.csv");
If the above doesn't work, various projects have been added the following class: ClassLoaderUtil1 (code here).2
Here are some examples of how that class is used:
src\main\java\com\company\test\YourCallingClass.ja...
R command for setting working directory to source file location in Rstudio
...s/proyect1").
Once you set that, you can navigate to a subdirectory: read.csv("DATA/mydata.csv"). Is the same as read.csv("D:/Documents/proyect1/DATA/mydata.csv").
If you want to navigate to a parent folder, you can use "../".
For example: read.csv("../olddata/DATA/mydata.csv") which is the same ...
UnicodeDecodeError: 'utf8' codec can't decode byte 0xa5 in position 0: invalid start byte
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This doesn't seem real clear. When importing a csv file how do you use this code?
– Dave
Sep 17 '19 at 15:13
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Having options in argparse with a dash
...help='Directory with .log and .log.gz files')
parser.add_argument('results-csv', type=argparse.FileType('w'),
default=sys.stdout,
help='Output .csv filename')
args = parser.parse_args()
print args
# gives
# Namespace(logs-dir='./', results-csv=<open file '...
App Inventor 2在不同的屏幕之间传值 · App Inventor 2 中文网
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通过原生控制块“打开屏幕并传值”
列表传值
微数据库传值
« 返回首页
App Inventor 2 在不同的屏幕之间传值属于很常见的需求，这里提供各种不同的实现思路，供大家参考。
通过原生控制块“打开屏幕...