stdio 精度 fprint

stdio precision fprint

这是家庭作业。除了这一件,我已经完成了所有编码。这是它应该是什么样子的一个例子。除了员工姓名

Employee's   Pay      RegHours    Gross    Fed      SSI     Net
Name         Rate     OvtHours    Worked   State    Defr
==========   =====    ========   =======  ======   ======   ======
Smith, Sam   25.00       40.00   1000.00  127.50   65.88    647.70
                          5.00              8.93  150.00

目前是这个样子。

   Employee's   Pay      RegHours    Gross    Fed      SSI     Net
   Name         Rate     OvtHours    Worked   State    Defr
   ==========   =====    ========   =======  ======   ======   ======
   Smith        25.00       40.00   1000.00  127.50   65.88    647.70
   Sam                       5.00              8.93  150.00

   Jordan       35.00       32.00   1120.00  149.25   77.11    758.19
   Michael                   0.00             10.45  125.00

   Totals:      60.00       72.00   2120.00  276.75  142.99   1405.89
                             5.00             19.37  275.00
   Averages:    30.00       36.00   1060.00  138.38   71.49    702.95
                             2.50              9.69  137.50

它具体说:"The employee's name must be printed as shown in the the report above with a comma and a space separating the first and last name." 我无法正确地将其设置为 space。

我的格式是这样的:

#define HEADERLINE1 "       Employee's   Pay      RegHours    Gross    Fed      SSI     Net\n"
#define HEADERLINE2 "       Name         Rate     OvtHours    Worked   State    Defr\n"
#define HEADERLINE3 "       ==========   =====    ========   =======  ======   ======   ======\n"
#define REPLNEFORMT1 "       %-12.15s%6.2f%12.2f%10.2f%8.2f%8.2f%10.2f\n"//Main Header Line 1
#define REPLNEFORMT2 "       %-12s%18.2f%18.2f%8.2f\n\n"//Main Header Line 2
#define REPLNEFORMT3 "       %-11s%7.2f%12.2f%10.2f%8.2f%8.2f%10.2f\n"//Totals Line 1 
#define REPLNEFORMT4 "       %30.2f%18.2f%8.2f\n"//Totals Line 2    
#define REPLNEFORMT5 "       %-11s%7.2f%12.2f%10.2f%8.2f%8.2f%10.2f\n"//Averages Line 1 
#define REPLNEFORMT6 "       %30.2f%18.2f%8.2f\n"//Averages Line 2  

我是这样打印的:

fprintf(stdout,REPLNEFORMT1,ln,p,h<=40?h:40,g,fed,ssi,n);  
fprintf(stdout,REPLNEFORMT2,fn,ovt,state,d);
fprintf(reportfile,REPLNEFORMT1,ln,p,h<=40?h:40,g,fed,ssi,n);  
fprintf(reportfile,REPLNEFORMT2,fn,ovt,state,d);

ln = 姓氏,fn = 名字,p = 工资,h = 小时数,g = 总收入,n = 净收入。

我不能使用 iostream,因此标准精度是不可能的。

使用制表符来排列您的列,而不是空格。

char result[50];

strcpy(result, ln);
strcat(result, ", ");
strcat(result, fn);

试试这个