goto语句C语言

测试goto语句

示例1：

#include 
int main(){
	int choice = 4;
	if (choice==1){
		printf("choice1:%dn",choice);
		goto error1;
	}
	else
	if (choice==2)
	{
		printf("choice2:%dn",choice);
		goto error2;
	}

error2:
	{
	printf("choice error2:%dn",choice);
	printf("This is error2n",choice);
}
error1:
	printf("choice error1:%dn",choice);
	printf("This is error1n",choice);
	printf("test outputn");
	return 0;
}

 示例2：

#include 
int main(){
	int choice = 1;
	if (choice==1){
		printf("choice1:%dn",choice);
		goto error1;
	}
	else
	if (choice==2)
	{
		printf("choice2:%dn",choice);
		goto error2;
	}

error2:
	{
	printf("choice error2:%dn",choice);
	printf("This is error2n",choice);
}
error1:
	printf("choice error1:%dn",choice);
	printf("This is error1n",choice);
	printf("test outputn");
	return 0;
}

示例3

#include 
int main(){
	int choice = 2;
	if (choice==1){
		printf("choice1:%dn",choice);
		goto error1;
	}
	else
	if (choice==2)
	{
		printf("choice2:%dn",choice);
		goto error2;
	}

error2:
	{
	printf("choice error2:%dn",choice);
	printf("This is error2n",choice);
}
error1:
	printf("choice error1:%dn",choice);
	printf("This is error1n",choice);
	printf("test outputn");
	return 0;
}