摘要： 1、选择好变量名的注意事项糟糕的变量名： r = r-rr; rrr = cc + salesTax(cc); r = r + LateFee(r1,r) + rrr; 良好的变量名： 1balance = balance - lastPayment;2monthlyTotal = newPurchases + SalesTax(newPurchases);3balance = balan... 阅读全文