View Code of Problem 43

#include<stdio.h>
#include<string.h>
int main()
{
	char a[90];
	gets(a);	//gets() 函数不仅比 scanf 简洁,而且,就算输入的字符串中有空格也可以直接输入
	for(int i=0;i<strlen(a);i++)
	{
		if((a[i]>='a'&&a[i]<='z')||(a[i]>='A'&&a[i]<='Z'))
			putchar(a[i]);
	}
	return 0;
}

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