Question

我一直试图将其转换为v4，但是存在很多问题，尤其是与将参数传递给dl的plot函数有关的错误。任何帮助或建议，将不胜感激。我看过V3转换指南。预先感谢您的帮助。

study(title="EIT", shorttitle="EIT", overlay=true, precision=3)
src=input(hl2, title="Source")
a= input(0.07, title="Alpha", step=0.01) 
fr=input(false, title="Fill Trend Region")
ebc=input(false, title="Enable barcolors")
hr=input(false, title="Hide Ribbon")
it=0.0
it:=(a-((a*a)/4.0))*src+0.5*a*a*src[1]-(a-0.75*a*a)*src[2]+2*(1-a )*nz(it[1], ((src+2*src[1]+src[2])/4.0))-(1-a )*(1-a )*nz(it[2], ((src+2*src[1]+src[2])/4.0))
lag=2.0*it-nz(it[2])
dl=0.0
dl:=plot(fr and (not hr)?(it>lag?lag:it):na, color=gray, style=circles, linewidth=0, title="Dummy")
itl=plot(hr?na:it, color=fr?gray:red, linewidth=1, title="Trend")
ll=plot(hr?na:lag, color=fr?gray:blue, linewidth=1, title="Trigger")
fill(dl, ll, green, title="UpTrend", transp=70)
fill(dl, itl, red, title="DownTrend", transp=70)
bc=not ebc?na:(it>lag?red:lime)
barcolor(bc)

Answer 1

这对您有用吗？

#!/bin/bash

# just for demo
> URI.txt
URI='?daypartId=1&catId='
URL=https://www.mcdelivery.com.pk/pk/browse/menu.html

# just for demo
for id in 1 2 3 4 5 6 8 10 11 12 14
  do
    echo -e "${URI}${id}" >> URI.txt
done

ARRAY=()
while read -r LINE || [[ -n $LINE ]]
do
    [ "$LINE" ] && ARRAY+=("$LINE")
done < URI.txt

for LINE in "${ARRAY[@]}"
  do
    # curl into file main.tmp~
    echo -e "${URL}${LINE}"
    curl "${URL}${LINE}" > "${0%.*}.tmp~" 2> /dev/null

    # get item name and convert into simple file name
    file="$(grep -w "${LINE##*&}" "${0%.*}.tmp~" | grep -o '<span.*</span>' | cut -d\> -f2 | cut -d\< -f1)"
    file="${file//[^[:alnum:]^.^\/^_^\ -]/}"
    file="${file// /_}"
    while [[ "${file}" =~ "__" ]]
      do
        file="${file//__/_}"
    done

    # fallback file name
    [ "$file" ] || file="file${LINE##*&}"

    # rename main.tmp~ into Deals.html and create empty file Deals.txt
    mv -f "${0%.*}.tmp~" "${file}.html" > "${file}.txt"

    # declare arrays
    product_offset=()
    title=()
    price=()

    for offset in $(grep -bha '<div class="panel panel-default panel-product">' "${file}.html" | cut -d: -f1)
      do
         product_offset+=($offset)
    done
    # file size in bytes as last product_offset
    product_offset+=($(stat -c%s "${file}.html"))
    # count matches
    j=$(grep -hac '<div class="panel panel-default panel-product">' "${file}.html")

    # write array title + price from Deals.html    
    i=0
    while [ $i -lt $j ]
      do
        # calculate product_offset
        beg=${product_offset[$i]}
        end=${product_offset[$((i+1))]}
        len=$(expr ${end:-0} - ${beg:-0})

        # search title within product_offset
        item="$(dd if="${file}.html" bs=1 skip=${beg:-0} count=${len:-0} status=none | grep '<h5 class="product-title">' | cut -d\> -f2 | cut -d\< -f1)"
        title+=("$item")

        # search price within product_offset
        item="$(dd if="${file}.html" bs=1 skip=${beg:-0} count=${len:-0} status=none | grep '<span class="starting-price">' | cut -d\> -f2 | cut -d\< -f1)"
        price+=("$item")

        i=$((i+1))
    done

    echo -e "################################################\n#"
    echo -e "# ${file//_/ }\n#"
    echo -e "################################################\n"

    # read array title + price    
    i=0
    while [ $i -lt $j ]
      do
        # echo -e "(${title[$i]}, ${price[$i]})\n" | tee -a "${file}.txt"
        printf "%s-\tName:\t%s\n\tPrice:\t%s\n\n" $((i+1)) "${title[$i]}" "${price[$i]}" | tee -a "${file}.txt"
        i=$((i+1))
    done
done

exit 0

需要帮助将Pinescript v2转换为v4

1 个答案: