常用C语言与汇编语言之间的对应关系：if else；switch；条件表达式；while；for

下面是常用C语言与汇编语言之间的对应关系：

1. if else：

C语言代码：

if (condition) {
    // do something
} else {
    // do something else
}

汇编语言代码：

; assume condition is in register eax
cmp eax, 0 ; compare eax with 0
je else ; jump to else if eax is 0
; do something
jmp end_if
else:
; do something else
end_if:

2. switch：

C语言代码：

switch (expression) {
    case value_1:
        // do something
        break;
    case value_2:
        // do something
        break;
    default:
        // do something else
        break;
}

汇编语言代码：

; assume expression is in register eax
cmp eax, value_1
je case_1
cmp eax, value_2
je case_2
jmp default_case
case_1:
; do something
jmp end_switch
case_2:
; do something
jmp end_switch
default_case:
; do something else
end_switch:

3. 条件表达式：

C语言代码：

result = condition ? value_if_true : value_if_false;

汇编语言代码：

; assume condition is in register eax
cmp eax, 0 ; compare eax with 0
je false_case ; jump to false_case if eax is 0
mov result, value_if_true ; move value_if_true to result
jmp end_conditional
false_case:
mov result, value_if_false ; move value_if_false to result
end_conditional:

4. while：

C语言代码：

while (condition) {
    // do something
}

汇编语言代码：

start_while:
; assume condition is in register eax
cmp eax, 0 ; compare eax with 0
je end_while ; jump to end_while if eax is 0
; do something
jmp start_while ; jump back to start_while
end_while:

5. for：

C语言代码：

for (initialization; condition; increment) {
    // do something
}

汇编语言代码：

initialization ; initialization code
start_for:
; assume condition is in register eax
cmp eax, 0 ; compare eax with 0
je end_for ; jump to end_for if eax is 0
; do something
increment ; increment code
jmp start_for ; jump back to start_for
end_for: