Question

请用C语言编写一个函数，用来删除字符串中的所有空格，加上注释哟

Answer 1

很简单的程序，遍历输入字符串。
1、如果字符不是空格，就赋值到输出字符串中。
2、如果是空格，就跳过这个字符。
例如：
#include <stdio.h>
#include <string.h>

int main()
{
const char * input = "Hello World! Welcome To Beijing!";
char output[1024];
int i, j, input_len;

input_len = strlen(input);
j = 0;
for(i = 0; i < input_len; i++)
{
if (input[i] != ' ')
{
output[j] = input[i];
j++;
}
}
output[j] = '\0';

printf("Input string is: %s\n", input);
printf("After spaces were removed: %s\n", output);
return 0;
}

具体的输出效果为：
Input string is: Hello World! Welcome To Beijing!
After spaces were removed: HelloWorld!WelcomeToBeijing!

Answer 2

很简单的程序，遍历输入字符串，如果字符不是空格，就赋值到输出字符串中，如果是空格，就跳过这个字符。

#include <stdio.h>
#include <string.h>

int main()
{
const char * input = "Hello World! Welcome To Beijing!";
char output[1024];
int i, j, input_len;

input_len = strlen(input);
j = 0;
for(i = 0; i < input_len; i++)
{
if (input[i] != ' ')
{
output[j] = input[i];
j++;
}
}
output[j] = '\0';

printf("Input string is: %s\n", input);
printf("After spaces were removed: %s\n", output);
return 0;
}

具体的输出效果为：
Input string is: Hello World! Welcome To Beijing!
After spaces were removed: HelloWorld!WelcomeToBeijing!

Answer 3

很简单的程序，遍历输入字符串，如果字符不是空格，就赋值到输出字符串中，如果是空格，就跳过这个字符。

#include <stdio.h>
#include <string.h>

int main()
{
const char * input = "Hello World! Welcome To Beijing!";
char output[1024];
int i, j, input_len;

input_len = strlen(input);
j = 0;
for(i = 0; i < input_len; i++)
{
if (input[i] != ' ')
{
output[j] = input[i];
j++;
}
}
output[j] = '\0';

printf("Input string is: %s\n", input);
printf("After spaces were removed: %s\n", output);
return 0;
}

具体的输出效果为：
Input string is: Hello World! Welcome To Beijing!
After spaces were removed: HelloWorld!WelcomeToBeijing!

Answer 4

函数库有自带的这类函数