我正在尝试从网页 https://www.worldcoinindex.com/
中获取加密名称、价格和 % 的数据如何通过以下脚本获取 % 列值?
set theHtml to do shell script "curl -s " & quoted form of "https://www.worldcoinindex.com"
set text item delimiters to {"<tbody>", "</tbody>"}
set tableContents to theHtml's text item 2 # item 2 is the body of the price table
set text item delimiters to {"<h2>"} # site uses new h2 for each currency
set tableChunks to tableContents's text items 2 thru -1
set pasteStr to ""
repeat with aChunk in tableChunks
set text item delimiters to "><span>$ </span><span class=\"span\">"
tell aChunk's text item 1 to set {theSymbol, thePrice} to {first word, last word}
set pasteStr to pasteStr & theSymbol & tab & thePrice & return
end repeat
set the clipboard to pasteStr
答案 0 :(得分:0)
这是供您考虑的替代方法:
请注意,这需要在 Safari 中隐藏的开发菜单上选中允许来自 Apple 事件的 JavaScript。
要取消隐藏隐藏的开发菜单:
示例 AppleScript 代码:
tell application "Safari"
make new document ¬
with properties {URL:"https://www.worldcoinindex.com"}
my waitForSafariPageToFinishLoading()
tell front document
set tickerList to {}
set lastPriceList to {}
set percentageList to {}
repeat with i from 0 to 99
set ticker to ¬
do JavaScript ¬
"document.getElementsByClassName('ticker')[" & i & "].innerText;"
copy words of ticker as text to end of tickerList
set lastPrice to ¬
do JavaScript ¬
"document.getElementsByClassName('number pricekoers lastprice')[" & i & "].innerText;"
copy lastPrice to end of lastPriceList
set percentage to ¬
do JavaScript ¬
"document.getElementsByClassName('percentage')[" & i & "].innerText;"
copy percentage to end of percentageList
end repeat
end tell
end tell
set tempListItem to {}
set groupedItemsList to {}
repeat with i from 1 to 100
copy item i of tickerList to end of tempListItem
copy item i of lastPriceList to end of tempListItem
copy item i of percentageList to end of tempListItem
copy tempListItem to end of groupedItemsList
set tempListItem to {}
end repeat
set tabDelimitatedListAsText to ""
repeat with anItem in groupedItemsList
set {TID, AppleScript's text item delimiters} to ¬
{AppleScript's text item delimiters, tab}
set thisItem to text of anItem as text
set AppleScript's text item delimiters to TID
set tabDelimitatedListAsText to ¬
tabDelimitatedListAsText & thisItem & linefeed
end repeat
set the clipboard to tabDelimitatedListAsText
on waitForSafariPageToFinishLoading()
-- # Wait for page to finish loading in Safari.
-- # This works in macOS Catalina and
-- # macOS Big Sur and may need adjusting
-- # for other versions of macOS.
tell application "System Events" to repeat until ¬
exists (buttons of groups of toolbar 1 of window 1 of ¬
process "Safari" whose name = "Reload this page")
delay 0.5
end repeat
end waitForSafariPageToFinishLoading
注意:示例 AppleScript 代码就是这样,没有任何包含的错误处理不包含任何额外的错误处理。用户有责任根据需要添加任何错误处理。查看 try 中的 error statement 和 AppleScript Language Guide statement。另见Working with Errors。此外,在适当的情况下,可能需要在事件之间使用 delay command,例如delay 0.5
,适当设置 delay 的 value。