C Shell funktioniert nicht

You can cancel it at least 24 hours before the trial period or the end of the subscription period to avoid deduction.  After the trial period, this subscription will be renewed automatically for $[4. 49]/month unless you actively close or cancel the subscription.  The account will confirm and charge you for renewal within 24 hours before the end of the current subscription period.  Payment will be deducted from iTunes account upon confirmation of subscription.  A software development tool for compiling and running C language on mobile devices, with built-in basic environment integrating Python and Lua.  Any unused part of the trial period after payment will be discarded.  You can cancel your subscription at any time.  You will be charged in your local currency at the prevailing exchange rate as defined by iTunes .  Support the execution of Linux basic commands on the console.  Support free trial for 3 days.  The implementation principle adopts the compilation mode of llvm and clang.  After purchase, you can go to the AppStore account settings to manage or cancel your subscription.