需要使用scanf从文本文件中读取输入，并将输入临时存储到一个结构中，最后使用printf打印。
或者,您可以使用fgets和strtok char buf[1024]; for (int i = 0; i < n1;) { if (!fgets(buf, sizeof(buf), stdin)) break; memset(&actors[i], 0, sizeof(ActorBio)); char* token; token = strtok(buf, "\""); if (!token) continue; strncpy(actors[i].name, token, sizeof(actors...
scanf是C语言，string 是类（C++）。不能直接赋值吧 可以这样：char buf[1024];string s;scanf("%s",buf);s=buf;最好不要混合使用C和C++的IO库。直接用cin include <iostream> include <string> using namespace std;string s;cin >> s;因为是scanf（%s）你这个是要给一个char*类型的读取，...
sscanf(buf, "%99s", s1); To avoid undefined behavior, refrain from using the address-of operator when scanning a string into an array of char that has already decayed into the expected type for the conversion specifier. A mismatched type will result in invoking undefined behavior, so ensure...
char buf[] = "hello my_printf"; my_printf("a = %d b = %c buf = %s c = %f.n",a,b,buf,c); return 0; } 实际上,格式化的转换有现成的函数可以调用,例如:vsprintf()和vsscanf()这些函数的源代码可以从bootloader和内核源码上获得。
charbuf[1024]={'\0'} ; //%[*] [width] [{h | l | ll | I64 | L}]type //If a percent sign (%) is followed by //a character that has no meaning //as a format-control character, //that character and the following
[^\"]\"\n", actors[i].name, &actors[i].BirthYear, actors[i].country)) continue; printf("%s %d %s\n", actors[i].name, actors[i].BirthYear, actors[i].country);} 或者,您可以使用fgets和strtok char buf[1024];for (int i = 0; i < n1;){ if (!fgets(buf, sizeof(buf), ...
java.io.FileNotFoundException; public class FileInputStreamDemo { /** * FileInputStream 字节输入流 –> 读取数据...byte[] buf = new byte[1024]; //数据中转站 临时缓冲区 int length = 0; //循环读取文件内容...,输入流中将最多buf.length个字节的数据读入一个buf数组中,返回类型是读取到的字节...
实际开发使用 _s 安全函数scanf_s("%s", buf, sizeof(buf))显式控制缓冲区仅限 Windows...
这样的方式输入进去的，也就是重定向进去的。这个时候虽然对于程序来说，你可以认为就是scanf了用户的...