第2行date后面加上冒号：
input name $ sex $ region $ date: yymmdd10. money;

谢谢 我对冒号理解有错误 我把冒号设置到 name后面了 我以为对整句都有效呢

In SAS an informat on input statement implies a variable type and positional length on the input file. It is only applied to a fixed length file. Fixed length text file is usually a output of IBM applications.

The best way for a beginner is to defined length, informat, format, and label clearly, see example below.

Or one can define all of them with attrib statement.  

data b;
length name $8 sex $2 region $4 date money 8;
informat date yymmdd10. ;
format date date9.;
label name='姓名' sex='性别' region='地区' date='日期' money='金额';

input name  sex  region  date  money;


cards;
章文 男 华东 1996-3-20 1099
亡国铭 男 华东 1996-5-19 39
童子敏 女 华北 1996-1-5 986
刘念新 男 东北 1997-10-1 3581
刘思今 女 华北 1997-4-1 659
关绍 女 东北 1996-11-5 358
赵霞 女 东北 1998-9-6 2010
;

proc print;
run;

谢谢您的指点

那么我又有了一个新的疑惑

当我直接在input语句中对 date变量定义 格式的时候 yymmdd10. 最后一个变量money 有些就会读入出错
而您的程序中 规范定义了length informat format 之后读入的数据就没有问题。
这两者有什么区别呢？？麻烦您指点

There are a couple of knowledge point here,
1) fixed length data file vs. variable length data file

2) input statement with an informat implied variable type + length taken from data. Your input statement style also implies space delimiter.

yymmdd10. has length 10

record: 赵霞 女 东北 1998-9-6 2010
length of 1998-9-6 2=10
the left 010 = 10 as of numeric representation.

if you change 2010 to 2110, the money will show 110.

Why SAS takes 1998-9-6 2 and correctly interprets it as 1998-9-6 is beyond my knowledge. My guess is a space matters here. Sorry!