1.2

Write code to reverse a C-Style String. (C-String means that “abcd” is represented as five characters, including the null character.)

void reverse(char* str){
	if(str==NULL)
	    return;
	int i=0,j=strlen(str)-1;
	while(i<j){
		int tmp=str[i];
		str[i]=str[j];
		str[j]=tmp;
		//forget i++,j-- when writing on paper
		i++;
		j--;
	}
}

在紙上，看似簡單的代碼還是總出問題：我忘記了i++，j--，將紙上的程序輸入到計算機中時導致死循環