交易视图 无法在'if'或'for'内调用'security'或'financial'

Question

如何重新编码?如何修复这个错误?

var float close_lock    = na
var float open_lock     = na
var float high_lock     = na
var float low_lock      = na
var bool normal_ticker_check    = na
normal_ticker_check := syminfo.type != 'spread'
if (normal_ticker_check)
close_lock   := security(syminfo.prefix+":"+syminfo.ticker , timeframe.period , close ,barmerge.gaps_off, barmerge.lookahead_on) 
open_lock    := security(syminfo.prefix+":"+syminfo.ticker , timeframe.period , open  ,barmerge.gaps_off, barmerge.lookahead_on) 
high_lock    := security(syminfo.prefix+":"+syminfo.ticker , timeframe.period , high  ,barmerge.gaps_off, barmerge.lookahead_on) 
low_lock     := security(syminfo.prefix+":"+syminfo.ticker , timeframe.period , low   ,barmerge.gaps_off, barmerge.lookahead_on) 
else
close_lock   := close 
open_lock    := open 
high_lock    := high 
low_lock     := low 

错误:无法在if或for中调用'security'或'financial'

Answer 1

如何在全局作用域中呈现您的安全调用，然后按您所拥有的进行分配?我在这里使用了一个元组，以便将安全调用的出现次数减少到1(最佳实践是尽可能少地使用)

var float close_lock    = na
var float open_lock     = na
var float high_lock     = na
var float low_lock      = na
var bool normal_ticker_check    = na
normal_ticker_check := syminfo.type != 'spread'
[o, h, l, c] = security(syminfo.prefix+":"+syminfo.ticker , timeframe.period , [open, high, low, close] ,barmerge.gaps_off, barmerge.lookahead_on) 
if (normal_ticker_check)
close_lock   := c
open_lock    := o
high_lock    := h
low_lock     := l
else
close_lock   := close 
open_lock    := open 
high_lock    := high 
low_lock     := low