h1.cpp

刮大风歌但范甘迪给对方 但范甘迪分给对方国的国的风格

#include<stdio.h>
#include<iostream>
#define StringSize 20	//设置大小

using namespace std;
bool syntaxCheck(const char* s);

bool syntaxCheck(const char* s)
{
	int j=0;
	char* stack;
	stack=new char[strlen(s)+1];
	for(;*s;s++)
	{
		char ch=*s;
		switch(ch)						//判断条件:左括号就入栈,右括号就判断
		{
			case '{' :
				stack[j++]=ch;
				break;
			case '[' :
				stack[j++]=ch;
				break;
			case '(' :
				stack[j++]=ch;
				break;
			case '}' :
				if(j==0||stack[--j]!='{')
					return false;
				break;
			case ']' :
				if(j==0||stack[--j]!='[')
					return false;
				break;
			case ')' :
				if(j==0||stack[--j]!='(')
					return false;
				break;
		}
	}
	if(j==0)
		return true;
	else
		return false;
}


int main(void)
{
	char string[StringSize];
	printf("Please input a String of C language,include '{','}','(',')','[',']':\n");	//输入字符串
	cin.getline(string,StringSize);
	if(syntaxCheck(string))
		cout<<"true!"<<endl;
	else
		cout<<"false!"<<endl;
	return 0;
}