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我正在尝试编写一个程序,用于删除用户输入的最后一个换行符,即在用户输入字符串后输入时生成的新行。C:试图从字符串末尾删除换行符
void func4()
{
char *string = malloc(sizeof(*string)*256); //Declare size of the string
printf("please enter a long string: ");
fgets(string, 256, stdin); //Get user input for string (Sahand)
printf("You entered: %s", string); //Prints the string
for(int i=0; i<256; i++) //In this loop I attempt to remove the newline generated when clicking enter
//when inputting the string earlier.
{
if((string[i] = '\n')) //If the current element is a newline character.
{
printf("Entered if statement. string[i] = %c and i = %d\n",string[i], i);
string[i] = 0;
break;
}
}
printf("%c",string[0]); //Printing to see what we have as the first position. This generates no output...
for(int i=0;i<sizeof(string);i++) //Printing the whole string. This generates the whole string except the first char...
{
printf("%c",string[i]);
}
printf("The string without newline character: %s", string); //And this generates nothing!
}
但它并不像我想的那样行为。下面是输出:
please enter a long string: Sahand
You entered: Sahand
Entered if statement. string[i] =
and i = 0
ahand
The string without newline character:
Program ended with exit code: 0
问题:
- 程序为何似乎符合
'\n'
第一个字符'S'
? - 为什么最后一行
printf("The string without newline character: %s", string);
根本没有从字符串中删除任何内容? - 我该如何让这个程序做我打算做的事情?
Thx为答案。它解决了这个问题。尽管如此,问题2仍然是我的一个谜。有人知道那里发生了什么? – Sahand
啊,明白了。谢谢! – Sahand