c語言中將整數(shù)轉(zhuǎn)換成字符串

Given an ASCII string (char[]) and we have to convert it into octal string (char[]) in C.

給定一個ASCII字符串(char [])，我們必須在C中將其轉(zhuǎn)換為八進制字符串(char [])。

Logic:

邏輯：

To convert an ASCII string to octal string, follow below-mentioned steps:

要將ASCII字符串轉(zhuǎn)換為八進制字符串，請執(zhí)行以下步驟：

• Extract characters from the input string and convert the character in octal format using %02o format specifier, %02o gives 0 padded two bytes octal value of any value (like int, char).

  從輸入字符串中提取字符，并使用％02o格式說明符將其轉(zhuǎn)換為八進制格式， ％02o給出0填充的兩個字節(jié)的八進制值(例如int ， char )。

• Add these two bytes (characters) which is a octal value of an ASCII character to the output string.

  將這兩個字節(jié)(字符)添加為輸出字符串，這兩個字節(jié)是ASCII字符的八進制值。

• After each iteration increase the input string's loop counter (loop) by 1 and output string's loop counter (i) by 2.

  每次迭代后，將輸入字符串的循環(huán)計數(shù)器( loop )增大1，將輸出字符串的循環(huán)計數(shù)器( i )增大2。

• At the end of the loop, insert a NULL character to the output string.

  在循環(huán)末尾，在輸出字符串中插入一個NULL字符。

Example:

例：

Input: "Hello world!"Output: "111415151540161516151441"

C程序?qū)SCII char []轉(zhuǎn)換為八進制char [] (C program to convert ASCII char[] to octal char[])

In this example, ascii_str is an input string that contains "Hello world!", we are converting it to a octal string. Here, we created a function void string2OctalString(char* input, char* output), to convert ASCII string to octal string, the final output string is storing in oct_str variable.

在此示例中， ascii_str是包含“ Hello world！”的輸入字符串。 ，我們將其轉(zhuǎn)換為八進制字符串。 在這里，我們創(chuàng)建了一個函數(shù)void string2OctalString(char * input，char * output) ， 將ASCII字符串轉(zhuǎn)換為八進制字符串 ，最終的輸出字符串存儲在oct_str變量中。

#include <stdio.h> #include <string.h>//function to convert ascii char[] to octal-string (char[]) void string2OctalString(char* input, char* output) {int loop;int i; i=0;loop=0;while(input[loop] != '\0'){sprintf((char*)(output+i),"%02o", input[loop]);loop+=1;i+=2;}//insert NULL at the end of the output stringoutput[i++] = '\0'; }int main(){char ascii_str[] = "Hello world!";//declare output string with double size of input string//because each character of input string will be converted//in 2 bytesint len = strlen(ascii_str);char oct_str[(len*2)+1];//converting ascii string to octal stringstring2OctalString(ascii_str, oct_str);printf("ascii_str: %s\n", ascii_str);printf("oct_str: %s\n", oct_str);return 0; }

Output

輸出量

ascii_str: Hello world! oct_str: 111415151540161516151441

Read more...

...

• Octal literals in C language

  C語言的八進制文字

• Working with octal numbers in C language

  使用C語言處理八進制數(shù)

• Working with hexadecimal numbers in C language

  使用C語言處理十六進制數(shù)

翻譯自: https://www.includehelp.com/c/convert-ascii-string-to-octal-string-in-c.aspx

c語言中將整數(shù)轉(zhuǎn)換成字符串

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