运算符使用，字符串处理

"小写全部转换成大写
REPORT ZABAP1903_11_BASIC05.
*data: var(15) type c .

```
 var = 'abhaFDNJKS23'.
```
```
 TRANSLATE var to upper case.
```

*write:/ var.

*"大写全部转换成大写
*data: var1(15) type c .

```
 var1 = 'abhaFDNJKS23'.
```
```
 TRANSLATE var1 to lower case.
```

*write:/ var1.

*"空格加首位和中间都算字符，末尾不占字符节
*data: len type i.
** len1 type i,
** var2(10) type c.
** var2 = 'dhja23'.

```
 len = strlen('shduia').
```

** len1 = strlen(var2) .

```
 write:/ len.
```

*"合并字符串

data: c1(5) value '核对',
```
  c2(5) value '接送',
```
```
  c3(2) value 'o',
```
```
  c4(10),
```
```
  c5(10),
```
```
  sep(1) value '-'.
```
```
 concatenate c1 c2 c3 into c4.
```

 concatenate c1 c2 c3 into c5 separated by sep.

*write:/ c4 ,c5.

*"分割字符串
*data: str(100) type c,

```
 p1(20) type c,
```
```
 p2(20) type c,
```
```
 p3(20) type c,
```
```
 p4(20) type c,
```
```
 del(2) value '&&'.
```

*str = 'part1 && part2 && part3 && part4 && part5'.
*split str at del into p1 p2 p3 p4.
*write:/ p1,p2,p3,p4.

*登录屏幕
parameters:user(20) type c,
password(20) type c.
data: user1(20) type c,
password1(15) type c,
t(20) type c.
user1 = 'ABAP'.
password1 = '123'.
if user = user1 and password = password1.
t = '登陆成功'.
else.
t = '用户名或密码错误'.

endif.
write:/ t.

运算符使用，字符串处理

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