C语言 Printf函数

#include <stdio.h>

int main(int argc, const char * argv[])
{

    // insert code here...
    printf("Hello, World!\n");

    printf("My age is %d\n", );

    // My age is 26，height is 1.55，name is 名字，sex is 'A'
    printf("My age is %-4d，height is %-5.2f，name is %s，sex is '%c'",
           , 1.55f, "名字", 'A');

    // %.2f代表保留2位小数

    // 一个中文会占用至少2个字符

    return ;
}