从昨天开始我就尝试将 Boost 包含在 Qt Creator 中。但这不起作用。
INCLUDEPATH += C:\boost_1_59_0
但是如何处理“.a”文件呢？
对不起，我的英语不好。
错误信息：
C:/boost_1_59_0/stage/lib/libboost_regex-mgw51-mt-1_59.a(cpp_regex_traits.o): duplicate section `.data$_ZZN5boost16cpp_regex_traitsIcE21get_catalog_name_instEvE6s_name[__ZZN5boost16cpp_regex_traitsIcE21get_catalog_name_instEvE6s_name]' has different size
C:/boost_1_59_0/stage/lib/libboost_regex-mgw51-mt-1_59.a(regex.o): duplicate section `.rdata$_ZTSN5boost16exception_detail19error_info_injectorISt13runtime_errorEE[__ZTSN5boost16exception_detail19error_info_injectorISt13runtime_errorEE]' has different size
C:/boost_1_59_0/stage/lib/libboost_regex-mgw51-mt-1_59.a(regex.o): duplicate section `.rdata$_ZTSN5boost16exception_detail10clone_implINS0_19error_info_injectorISt13runtime_errorEEEE[__ZTSN5boost16exception_detail10clone_implINS0_19error_info_injectorISt13runtime_errorEEEE]' has different size
C:/boost_1_59_0/stage/lib/libboost_regex-mgw51-mt-1_59.a(regex.o): duplicate section `.rdata$_ZTVN5boost16exception_detail19error_info_injectorISt13runtime_errorEE[__ZTVN5boost16exception_detail19error_info_injectorISt13runtime_errorEE]' has different size
C:/boost_1_59_0/stage/lib/libboost_regex-mgw51-mt-1_59.a(regex.o): duplicate section `.rdata$_ZTVN5boost16exception_detail10clone_implINS0_19error_info_injectorISt13runtime_errorEEEE[__ZTVN5boost16exception_detail10clone_implINS0_19error_info_injectorISt13runtime_errorEEEE]' has different size
debug/main.o: In function `ZN5boost9re_detail18basic_regex_parserIcNS_12regex_traitsIcNS_16cpp_regex_traitsIcEEEEE4failENS_15regex_constants10error_typeEiSsi':
C:/boost_1_59_0/boost/regex/v4/basic_regex_parser.hpp:220: undefined reference to `boost::regex_error::regex_error(std::string const&, boost::regex_constants::error_type, int)'
debug/main.o: In function `ZN5boost9re_detail19basic_regex_creatorIcNS_12regex_traitsIcNS_16cpp_regex_traitsIcEEEEE16fixup_recursionsEPNS0_14re_syntax_baseE':
C:/boost_1_59_0/boost/regex/v4/basic_regex_creator.hpp:774: undefined reference to `boost::regex_error::regex_error(std::string const&, boost::regex_constants::error_type, int)'
C:/boost_1_59_0/boost/regex/v4/basic_regex_creator.hpp:856: undefined reference to `boost::regex_error::regex_error(std::string const&, boost::regex_constants::error_type, int)'
debug/main.o: …表达式是:
times 512-($-$$) db 0
我知道美元符号意味着什么,但我不知道它是什么意思.
双美元符号是什么意思？
我必须为学校写一个网站，我想在 CSS 中使用 box-shadow 但它不起作用。没有影子。我想在标题 div 框下有阴影
html
<html>
<head>
<title>DABA - Videoverleih</title>
<meta charset="utf-8">
<link rel="stylesheet" type="text/css" href="styles.css">
</head>
<body>
<div id="header">
<h1>Videoverleih</h1>
</div>
<div id="content">
</div>
</body>
CSS
#header {
box-shadow: 0px 0px 3px 1px rgba(0, 0, 0, 0.5);
background-color: #AA0000;
position: absolute;
left: 0;
top: 0;
width: 100vw;
height: 12%;
}
#header h1 {
color: #FFFFFF;
text-align: center;
font-family: Arial, Helvetica, sans-serif;
}
#content {
background-color: #FFFFFF;
position: absolute;
left: 0;
top: 12%;
width: 100%;
height: 88%; …