0_0_35191636_25259.cpp: In function 'std::string chuli(std::string)':
0_0_35191636_25259.cpp:52:7: error: 'i' was not declared in this scope
for( i = 0; i < str.length() && !qiandaoling;i++){
^
0_0_35191636_25259.cpp:67:7: error: 'i' was not declared in this scope
for( i = str.length() - 1;i >= 0 && !houzhuiling;i--){
^
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