[#]Q Enter ex mode. # retains current horizontal scroll
load variable 0，这一点在新收录的资料中也有详细论述
Total test duration: PT11.474S | PT11.313S，这一点在新收录的资料中也有详细论述
Closures can reference variables from their enclosing scope. This is what distinguishes a closure from a plain function pointer — it “closes over” the environment where it was created.，这一点在新收录的资料中也有详细论述