设计一个判断表达式中括号匹配问题的程序。要判断的表达式如下：

{a=(1+v(b[3+c[4]]))

{a=(b[0]+1) }

a={1+(b[2]-b[4])}*3+(b[1]-b[3])/5-Design a program to determine the expression in parentheses matching problem. To determine if the expression is as follows: {a = (1+v (b [3+c [4]])) {a = (b [0]+1) } a = {1+ (b [2]-b [4])}* 3+ (b [1]-b [3])/5