最常用的截取函数有left,right,substring1.LEFT ( character_expression , integer_expression )返回从字符串左边开始指定个数的字符举例说明:left(“字段名”,截取几位字符串)下面的示例使用 LEFT 函数返回字符串 abcdefg...
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其他好文 时间:
2014-11-07 12:37:34
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139
可以看delph的帮助,里面有这个问题详细说明:A character string, also called a string literal or string constant, consists of a quoted string, a control string, or a combi...
最好的办法:设置mysql服务器的字符集,当然也可以通过mysql提供的api来设置运行时的字符集Ideally a proper character set will be set at the server level, and doing this is described within th...
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数据库 时间:
2014-11-06 17:15:55
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278
光学字符识别(OCR,Optical Character Recognition)是指对文本资料进行扫描,然后对图像文件进行分析处理,获取文字及版面信息的过程。OCR技术非常专业,一般多是印刷、打印行业的从业人员使用,可以快速的将纸质资料转换为电子资料。关于中文OCR,目前国内水平较高的有清华文通、...
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其他好文 时间:
2014-11-06 16:45:50
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307
In Crystal Reports, the following error message is displayed when an invalid character is used in the databasetable alias name: Query Engine Error: “T...
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其他好文 时间:
2014-11-06 16:28:36
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355
When we use visual studio open source file or any other file, we may encounter below problem:
File Load
Some bytes have been replaced with the Unicode substitution character whil...
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其他好文 时间:
2014-11-06 14:56:45
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205
When we use visual studio open source file or any other file, we may encounter below problem:File LoadSome bytes have been replaced with the Unicode s...
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其他好文 时间:
2014-11-06 14:24:55
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169
一、Warning C4819:The file contains a character that can ot be represented in the current code page(936). save the file in unicode format to prevent dat...
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其他好文 时间:
2014-11-05 12:57:38
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221
1. wchar,char的问题 工程-属性-general-character Set 改成Use Multi-Byte Character Set2. 删除sdf ipcha. Tools->Options->Text Editor->C/C++->Advanced,在 Fallback Loc...
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其他好文 时间:
2014-11-05 12:25:20
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137