Description: Dynamically parse and compute the expression. Syntax: eval(StringExp ,{argExp},…) Note: The function dynamidynamically parse, compute, expression
Description: Compute expressions against a record and return result of the last one. Syntax: r.(x,…) Note: The function record, compute, expression
Description: Compute a series of expressions one by one in an automatic fashion, and return the result of the last expre a series of expressions, compute