int float string按宽度精度输出
1 #include <stdio.h> 2 3 int main(void) 4 { 5 int a = 99; 6 float b = 9.9; 7 char c[] = "hello"; 8 9 printf("*%010d*\n", a); 10 printf("*%10.3d*\n", a); 11 printf("*%-10.3d*\n", a); 12 printf("*%010.3d*\n", a); 13 printf("*%-010.3d*\n", a); 14 printf("------------\n"); 15 printf("*%010f*\n", b); 16 printf("*%10.3f*\n", b); 17 printf("*%-10.3f*\n", b); 18 printf("*%010.3f*\n", b); 19 printf("*%-010.3f*\n", b); 20 printf("------------\n"); 21 printf("*%010s*\n", c); 22 printf("*%10.3s*\n", c); 23 printf("*%-10.3s*\n", c); 24 printf("*%010.3s*\n", c); 25 printf("*%-010.3s*\n", c); 26 27 return 0; 28 }
如果0标志和精度说明符在字符串和整数输出中同时出现，那么0标志就会被忽略，但浮点数输出仍会显示
