C语言编写。。i
cludeiostreami
cludecmathi
cludestri
gusi
g
amespacestd
co
stdoublepi314159265co
stdoublee27co
sti
tSIZE1000
typedefstruct
ode为了处理符号而建立的链表如12
chardata
ode
ext
ode
typedefstructstack_
um存储数的栈
doubletopdoublebasestack_
um
typedefstructstack_char存储运算符号的栈
chartopcharbasestack_char
stack_
umS_
um定义stack_charS_char定义charfu18
QLCSTcsti
tcompare1000表现出各运算符号的优先级doubleshu1000存储