print_f64(3.14);
I've also made the decision that command-line arguments should never change the behavior of the compiler itself. They may only change verbosity, perform additional actions like --execute, or facilitate clean builds (--ignore-cache). This constraint causes configurations which are important to successfully build a project to reside within the project's code. The use of external build systems and .sh scripts diminishes when all the options are "built-in".
，更多细节参见新收录的资料
Jean Smart, Hacks，这一点在新收录的资料中也有详细论述
%w(first second third).each { |label| sheet.add_row [label, rand(24)+1] }