(function($) { 'use strict' $(function() { if ($('#sales-chart').length) { var ctx = document.getElementById('sales-chart').getContext('2d') var marksData = { labels: ['去年收入', '公司资产总额', '研发费用', '去年利润', '研发人员占比', '专利数'], datasets: [{ label: '唐山恒屿机电有限公司', labels: { fontSize: 32 }, backgroundColor: '#fdf1e1', borderColor: 'rgba(200,0,0,0.6)', borderWidth: 2, fill: true, radius: 6, pointRadius: 6, pointBorderWidth: 3, pointBackgroundColor: 'orange', pointBorderColor: 'rgba(200,0,0,0.6)', pointHoverRadius: 10, data: [641000, 894000, 68000, 85000, 0.8, 7] }] } var chartOptions = { tooltips: { callbacks: { label: function(tooltipItem, data) { var value = tooltipItem.yLabel if (value >= 10000) { return (value / 10000) + '万' } else { return value } } } }, scale: { ticks: { beginAtZero: true, min: 0, max: 1000000, stepSize: 200000, callback: function(value, index, values) { if (value >= 10000) { return (value / 10000) + '万' } else { return value } } }, pointLabels: { fontSize: 16 } }, legend: { position: 'left', fontSize: 16, labels: { fontSize: 16 }, padding: { right: 20 } }, } var myChart = new Chart(ctx, { type: 'radar', data: marksData, options: chartOptions, elements: { point: { radius: 0 } } }) } }) })(jQuery) 怎么居中显示

要让这段代码中的图表居中显示，可以通过修改其父元素的样式来实现。具体来说，可以使用下面的 CSS 代码将其水平居中：

#sales-chart-container {
    display: flex;
    justify-content: center;
}

然后，在 HTML 代码中，将图表的容器元素的 ID 设置为 `sales-chart-container`。这样，图表就会相对于其父元素水平居中显示。

相关问题

linux下载postgresql报错gcc -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Werror=vla -Wendif-labels -Wmissing-format-attribute -Wimplicit-fallthrough=3 -Wcast-function-type -Wformat-security -fno-strict-aliasing -fwrapv -fexcess-precision=standard -Wno-format-truncation -Wno-stringop-truncation -O2 -I../../../../src/include -D_GNU_SOURCE -c -o signalfuncs.o signalfuncs.c

这个错误提示是编译 PostgreSQL 的时候出现的，大概意思是缺少某些头文件或者依赖库。可能需要安装一些相关的开发库来解决这个问题。你可以尝试安装以下的依赖项：

sudo apt-get install build-essential libreadline-dev zlib1g-dev flex bison libxml2-dev libxslt-dev libssl-dev

然后重新编译 PostgreSQL。如果还是有问题，请附上完整的错误信息，我可以更具体地帮助你解决问题。

# proxychains.conf VER 3.1 # # HTTP, SOCKS4, SOCKS5 tunneling proxifier with DNS. # # The option below identifies how the ProxyList is treated. # only one option should be uncommented at time, # otherwise the last appearing option will be accepted # #dynamic_chain # # Dynamic - Each connection will be done via chained proxies # all proxies chained in the order as they appear in the list # at least one proxy must be online to play in chain # (dead proxies are skipped) # otherwise EINTR is returned to the app # strict_chain # # Strict - Each connection will be done via chained proxies # all proxies chained in the order as they appear in the list # all proxies must be online to play in chain # otherwise EINTR is returned to the app # #random_chain # # Random - Each connection will be done via random proxy # (or proxy chain, see chain_len) from the list. # this option is good to test your IDS :) # Make sense only if random_chain #chain_len = 2 # Quiet mode (no output from library) #quiet_mode # Proxy DNS requests - no leak for DNS data proxy_dns # Some timeouts in milliseconds tcp_read_time_out 15000 tcp_connect_time_out 8000 # ProxyList format # type host port [user pass] # (values separated by 'tab' or 'blank') # # # Examples: # # socks5 192.168.67.78 1080 lamer secret # http 192.168.89.3 8080 justu hidden # socks4 192.168.1.49 1080 # http 192.168.39.93 8080 # # # proxy types: http, socks4, socks5 # ( auth types supported: "basic"-http "user/pass"-socks ) # [ProxyList] # add proxy here ... # meanwile # defaults set to "tor" socks5 192.168.23.15 10808 dns_server = 8.8.8.8

从您提供的 `proxychains.conf` 文件来看，您已经设置了 DNS 服务器为 Google 的 DNS 服务器 `8.8.8.8`。但是在执行命令时仍然提示无法解析域名。这种情况下，您可以尝试使用其他可用的 DNS 服务器地址，比如阿里云的 DNS 服务器地址 `223.5.5.5` 和 `223.6.6.6`，或者使用默认的 DNS 服务器。您可以在 `proxychains.conf` 文件中将 `dns_server` 设置为以下之一：

# 使用阿里云的 DNS 服务器
dns_server = 223.5.5.5
dns_server = 223.6.6.6

# 使用默认的 DNS 服务器
# dns_server =

然后重新执行命令，看是否能够正常工作。