Solving!!!!!

CodePudding user response:

'& lt; 'is illegal characters

CodePudding user response:

If do not have what problem, error & lt; Is illegal, hope to adopt, can focus on direct messages I don't understand,

CodePudding user response:

Didn't see what problem, the first else advice and behind the if written in one line,

CodePudding user response:

You want to use the full Angle is less than the number of <?