int l1=strlen(seq1);
这样 在C中 是正确的吗
为什么VC6.0 C:\Documents and Settings\ASUS\桌面\a.c(17) : error C2143: syntax error : missing ';' before 'type'
出现这个错误呢

常量应该不能赋值吧

我求的是seq1 这个字符串的长度啊

不是这行的错误吧

--------------------Configuration: a - Win32 Debug--------------------
Compiling...
a.c
C:\Documents and Settings\ASUS\桌面\a.c(17) : error C2143: syntax error : missing ';' before 'type'
C:\Documents and Settings\ASUS\桌面\a.c(18) : error C2143: syntax error : missing ';' before 'type'
C:\Documents and Settings\ASUS\桌面\a.c(20) : error C2065: 'l1' : undeclared identifier
C:\Documents and Settings\ASUS\桌面\a.c(25) : error C2065: 'l2' : undeclared identifier
C:\Documents and Settings\ASUS\桌面\a.c(84) : error C2143: syntax error : missing ';' before 'type'
C:\Documents and Settings\ASUS\桌面\a.c(85) : error C2143: syntax error : missing ';' before 'type'
C:\Documents and Settings\ASUS\桌面\a.c(86) : error C2143: syntax error : missing ';' before 'type'
C:\Documents and Settings\ASUS\桌面\a.c(95) : error C2065: 'align1' : undeclared identifier
C:\Documents and Settings\ASUS\桌面\a.c(95) : error C2065: 'align1_length' : undeclared identifier
C:\Documents and Settings\ASUS\桌面\a.c(95) : error C2109: subscript requires array or pointer type
C:\Documents and Settings\ASUS\桌面\a.c(95) : error C2106: '=' : left operand must be l-value
C:\Documents and Settings\ASUS\桌面\a.c(96) : error C2065: 'align2' : undeclared identifier
C:\Documents and Settings\ASUS\桌面\a.c(96) : error C2065: 'align2_length' : undeclared identifier
C:\Documents and Settings\ASUS\桌面\a.c(96) : error C2109: subscript requires array or pointer type
C:\Documents and Settings\ASUS\桌面\a.c(96) : error C2106: '=' : left operand must be l-value
C:\Documents and Settings\ASUS\桌面\a.c(103) : error C2109: subscript requires array or pointer type
C:\Documents and Settings\ASUS\桌面\a.c(103) : error C2106: '=' : left operand must be l-value
C:\Documents and Settings\ASUS\桌面\a.c(104) : error C2109: subscript requires array or pointer type
C:\Documents and Settings\ASUS\桌面\a.c(104) : error C2106: '=' : left operand must be l-value
C:\Documents and Settings\ASUS\桌面\a.c(110) : error C2109: subscript requires array or pointer type
C:\Documents and Settings\ASUS\桌面\a.c(110) : error C2106: '=' : left operand must be l-value
C:\Documents and Settings\ASUS\桌面\a.c(111) : error C2109: subscript requires array or pointer type
C:\Documents and Settings\ASUS\桌面\a.c(111) : error C2106: '=' : left operand must be l-value
C:\Documents and Settings\ASUS\桌面\a.c(116) : error C2109: subscript requires array or pointer type
C:\Documents and Settings\ASUS\桌面\a.c(119) : error C2109: subscript requires array or pointer type
C:\Documents and Settings\ASUS\桌面\a.c(126) : warning C4013: 'system' undefined; assuming extern returning int
执行 cl.exe 时出错.

源代码呢？