利用格式化字符串对齐中英文,下面以中文采用UTF8编码为例子。
字符串1中有c1个中文字符、s1个英文字符;字符串2中有c2个中文字符、s2个英文字符;
字符串1包含 b1 = (3*c1 + s1)字节数、z1 = (2*c1 + s1)占位符数,字符串2包含 b2 = (3*c2 + s2)字节数、z2 = (2*c2 + s2)占位符数;
假设 z1 < z2,z = (z2 - z1), b = b1 + z;
那么 printf("%-bs|",字符串1);printf("%-bs|",字符串1); printf("%-s|",字符串2);printf("%-s|",字符串2) 左对齐
下面是测试用例;
#include <stdio.h>
int main(int argc, char *argv[])
{
int ret = 0, i = 0, cnt = 3;
char str1[] = {"单位(km/s)"};//b1 = 12, c1 = 10
char str2[] = {"unit(千米每秒)"};//b2 = 18 , c2 = 14
for(i = 0; i < cnt; i++)
{
printf("%-16s|",str1);
}
printf("\n");
for(i = 0; i < cnt; i++)
{
printf("%s|",str2);
}
printf("\n");
}
输出: